Rh incompatibility is a serious thing! I'm glad that you found out and were treated. It can cause serious harm to your child, or yourself, if unnoticed/untreated. - Cory
To all those who donate blood, I am still alive because of you. I have received about 20 blood transfusions because of blood cancer over the last 4 years and now it looks like i will be in long term remission. I wish I could thank every person whose blood has coursed through my body. (acute myeloid leukemia)
There are 2 antigens *A* and *B* Blood group *A* - has *only A* antigens Blood group *B* - has *only B* antigens Blood group *AB* - has *both AB* antigens Blood group *O* - has *neither A nor B* antigens And there is an *additional protein* called *Rh factor* If the Rh factor protein is *present* it is denoted by *+* If the Rh factor protein is *absent* it is denoted by *-* If a patient receives blood that has an antigen or protein that the patient's blood does not contain then the blood is *harmful* for the patient If the patient receives blood that does not contain any antigen or protein that is not in the patient's blood (and some of the antigens or proteins that the patient's blood contains can be absent from the blood) then it is *safe* for the patient
Bloodbank worker here: in an emergency sitation you can give a Rh neg. patient Rh pos. Bloodbags. If its the first time, nothing happens because theres is no natural antibody against Rh D (which makes you Rh pos)
Nicely produced video, but a couple of corrections. First, when your body's immune system attacks transfused red blood cells from a mismatched donor, it's not an "autoimmune" response as stated; autoimmune means attacking one's own cells. Second, there is no hospital in the developed world that would ever take the word of a patient regarding their blood type at the time of a transfusion - particularly if it was from a do-it-yourself kit they ordered over the internet. If there isn't time to cross-match blood, the patient gets O negative; if there is time, they always get cross-matched. The risk of death from ABO incompatibility is too great to rely on an acutely ill person's memory of an infrequently relevant part of their medical history.
I am relieved that you write that they provide Negative blood! I used to be a frequent donor at a German University hospital in my youth and as a university student. From time to time, they called me in for bloodsamples for research purposes. I only knew that I had a rare blood type, but that was before the internet. Mine is B Neg, Kell and Cellano Pos.
I came to the comments to say the same thing. The video also implies that someone might be a part of the Duffy blood group instead of the typical ABO groups. While that's true for the Hh (or Bombay) blood group they also referenced, it isn't true for Duffy. The Duffy blood group system is one of dozens that exist in humans. The presence or absence of Duffy antigens is in no way related to ABO status. The danger of receiving Rh incompatible blood is also overstated here. The main risk of receiving Rh incompatible red cells is the formation of antibodies against the Rh factor, which would only cause complications in future transfusions. Pre-transfusion testing in the blood bank (which is not performed by doctors, but by certified medical laboratory scientists) always includes a test that screens for these antibodies whenever time allows. In emergency situations, doctors may decide the need for blood products is urgent enough to transfuse before this testing is complete, despite the risk. If any unexpected antibodies are detected, they are identified and appropriate products are chosen accordingly.
True. I was typed each time, even though I have known my blood type since I was a child. Apparently, when my siblings and I were born, our blood was typed and my parents were given that information.
I'm AB- and have a blood donor card to prove it. My uncle, my mom and I are the only 3 in our family with Ab-. I love to donate blood but hate how excited the nurses get when they find out. They would probably lock me up somewhere and just keep draining me nonstop if it wouldn't kill me. I feel like I need to tell someone when and where I will be donating blood and if I'm not out by a certain time call the police.
My father was blood type A- and when he received the universal blood type "O" he would become very ill. When his doctor found out his children were A- he requested we do designated donations for my father as we all were A-. He never became ill when he received "A-" blood. I agree that our blood is very unique, meaning everyone. Hopefully one day scientists will find out more.
@@cynthiacole6140 Last week, I just read that there are a few subcategories under rh-negative and so some are really not that rh negative. besides, what country is this guy from that medical professionals made such a huge mistake so often?!
i'm skeptical when they say someone like william harvey "discovered" that blood flowed through the body. many ancient cultures could of already have been aware of this, like the Egyptians
I think that the Egyptians did blood transfusions. One of those things that got lost when the library of Alexandria was burned. We've since found a few depictions.
There is absolutely no way that a doctor would transfuse blood on the basis of what the patient thought their blood type was. The chances of that patient incorrectly remembering it is just too high. Thus knowing your blood type is just not that practically useful. Transfusions are a particularly tightly regulated area of medicine. Patients blood will always be checked before a transfusion, and if this isnt possible because of an emergency they will be given O -ve. I've seen patients have their blood cross matched (checked) multiple times due to having different operations on different days. The blood bank won't even trust an old cross match result from a month earlier, it will be rechecked again. - Final year medical student NZ
Sound freakin logical. People make mistakes. And the cost of simple paper mistake - painful death instead of simple procedure. Yeah, they can take extra 10min to recheck your blood group. Or give 0-
Yes, and after the patient has been matched with a correct donor a crossmatch between the patients blood and the donor is also always done before hand, just to make 100% sure there isn't anything that anyone has missed.
Yay, finally a subject I can elaborate on! Warning, this will be a long read: Your blood type depends on what antigens are on the outside of your red blood cells. Think of antigens as small markers that cover your red blood cells. As the video mentioned, the main blood types in humans are from the ABO blood group. People that have type AB blood have A- and B-antigens on their red blood cells, while people with type O blood have neither A- nor B-antigens on theirs. It's important to give patients blood, that is compatible with their ABO blood type, like the chart at 2:53 indicates. That is because the body automatically creates antibodies against the ABO antigens, that their own red blood cells don't have. E.g. people with type O blood automatically have antibodies against A- and B-antigens (anti-A and anti-B antibodies), while people with blood type A only have antibodies against B-antigens (anti-B antibodies). What are antibodies, you might ask? In our case here, they're little compounds, that can latch onto their corresponding antigen, e.g. the anti-B can latch onto B-antigens on someones red blood cells. When an antibody latches onto an antigen, it kind of tells the body, that this is a foreign object, and this can cause the body to attack the red blood cell. Our immune system also uses antibodies to attack e.g. bacteria and other stuff. The ABO blood group system is very important, precisely because we automatically create these antibodies, against the antigens we don't have. So if you have type A blood, your blood is already filled with anti-B antibodies in your blood, even if your body has never actually "seen" a B-antigen before. What's this about positive and negative blood then? This is another important antigen, the Rh-D antigen (that's why one of the circles on the blood type card at 4:24 says anti-D, because there are antibodies against the Rh-D antigen on that circle, if you have the Rh-D antigen on your red blood cells). You might've heard people say "I'm Rhesus positive" or something like that. That's referring to the Rh-D antigen. This antigen is very important, because it can also create some complications, when people get blood transfusions. However, people who are "Rhesus negative" don't automatically create antibodies against the Rh-D antigen - we only create it when our bodies are exposed to the Rh-D antigen. That's (also) why the ABO blood group system is kind of special. We also have other blood group systems, like the Duffy blood group system mentioned in the video. In fact, the Rh-D antigen I mentioned earlier is part of a bigger Rh blood group system. Some of the most important "secondary" blood group systems (with some of their important antigens in parentheses) are the Rh system (D, C, c, E, e), the Kell system (K, k, Kpa, Kpb), the Duffy system (Fya, Fyb), the Kidd system (Jka, Jkb), the Lewis system (Lea, Leb), the MNS system (M, N, S, s) and the Lutheran system (Lua, Lub). Everyone has some of these antigens on their red blood cells, along with their ABO blood type. E.g you can have A+ blood (i.e. A-antigen and RhD-antigens on your red blood cells), and also have K, E, Jka and C antigens alongside them. However, these "secondary" blood group systems aren't as important (with the exception of Rh-D) for normal people, since most people only naturally have antibodies against the ABO blood group system. The body doesn't automatically create antibodies against these "secondary" antigens. However (!), if someone *has* antibodies against some of these "secondary" antigens, they'll get blood that corresponds to their ABO/RhD type *AND* that's negative for whatever "irregular" antibodies they've produced against these "secondary" antigens. So if you're hospitalised, and you need a blood transfusion, then the blood bank will test you for your ABO/RhD blood type, and they'll also do an "antibody screen test" against these "irregular" antibodies...unless you need blood *right now* - then you'll get O- blood, as the video mentioned. Phew...if anyone spots any mistakes, please, feel free to correct me! I'm still just a poor student, haha.
Wait, you said that if an Rh- patient gets Rh+ blood, it will create complications, yet you also said that Rh- patient's immune system doesn't automatically produce Rh antibodies. I don't get it...
@тралль илитный Sorry, I wasn't too clear when I wrote that. The immune system doesn't automatically produce Rh-antibodies, but if you ever receive Rh+ blood, and your type is Rh-, you're *incredibly* likely to produce new antibodies against the Rh-antigen. It takes a while for these antibodies to be produced, so they often don't cause any complications when you get the blood, but we really wanna avoid creating these 'unnecessary' Rh-antibodies. Especially with young women, because if they ever get pregnant with an Rh+ child, the mothers Rh-antibodies could cross the placenta and cause haemolysis in the fetus. These Rh-antibodies could also cause problems in the future, if the person ever needs to get another blood transfusion. There are probably other scenarios, where we wouldn't want a person to produce Rh-antibodies, but I'm still just a student, so this is the limit of what I can answer 😅
I was a regular donor until I became ill a few years ago, that's when I found out my blood type is A2+. Then I became a Plasma donor for a while. Blood plasma is given to Haemophiliacs to control bleeding. It's a weird procedure but I was happy to be able to help. I'm sad that I can no longer be a donor, but I'm pleased that I was able to for so long.
No, in New Zealand all blood donations of all types are voluntary. However, they don't charge for blood products when you get a transfusion, either, so I guess it balances out.
Haemophiliacs have a life-threatening condition that they are born with. Everyone who needs blood products have equal rights to what is available. Your comment is deeply offensive.
Holy shit there are actually people who grow up without knowing their blood type WTF, where i'm from we all get tested at birth so we know all our life about it.
Just ask your mom what's her blood type. Chances are you are the same. Mothers gets tested during pregnancy and it includes blood typing which is important because the mother and child with incompatible blood types tends to lead to miscarriage.
as an O- from a small city on the great plains I remember being contacted by the police to please report to the hospital to donate to another O- who was in dire straits. one was a baby the other was a minister.
For everyone who is Rh - ( I’m O) and donated blood . I wouldn’t be here without you guys . I have systemic Lupus and when I gave birth to my daughter I almost had Mitral Valve prolapse. I now have permanent cardiomyopathy and leaky mitral valve . I get a echocardiogram every 6 months with my cardiologist. I always wished I could donate my blood because I know only 15% in the world has my blood type . Also I’m so grateful for the RhoGAM shot . I wouldn’t have my two miracle babies
It is since it doesn't have the A or B antigen and is Rh factor negative so it's safe to give to any blood type. Similarly AB+ is a universal receiver.
I have my masters in Medical Laboratory Science. In the developed world, knowing your blood type is trivial. UNDER NO CIRCUMSTANCES would you ever receive blood based off of what you say your blood type is. Compatibility of the blood is tested before in the lab.
In India, it's mentioned in I'd cards cause in case of emergency when u can't communicate, the blood can be arranged. Of course, blood is tested anyway before infusion.
@@vandanauniyal2815 That is highly unlikely because it is extremely dangerous. In no case would blood be set up for a patient based on information from some card. Even of the patient was conscious and told us his blood type we would always draw a new pink top for a type and screen. Blood cannot be 'arranged' without a complete type, screen and crossmatch, even in third world countries!
I've been wanting to know my blood type since high school and always wanted to donate blood, but whenever the donation buses come around I always end up having a bit of a cold :/ This year.
Lashan actually you can go to the blood connection's physical locations ^^ they send out the vans but there is an actual building that's always open for donors
My uncle, my mom and I are the only three people in our family with AB- blood. If you have ever donated blood, do the nurse get over excited when they find out like the do with me?
My friend got invited to Germany(Btw, we are from Indonesia) to donor her blood because her blood type is AB-, all the accommodation and tickets are pay by the hospital and in her family only her and her brother is type AB-, it is really rare..
@@mrluthfians01 are you perhaps have European grand parents? Or somewhere along your ancestor tree? I read somewhere that AB- is more likely to be found in Europe (I believe 1 of the samples is taken from Netherlands which is make sense because the history of colonial back in the day) even though there are still rare.. me and my friends is also had dutch ancestor (mine was my great great great great grandfather from my mother side, and my my friends is from her great great grandfather) but my blood type is O+.
FYI blood type O was actually 0 (zero) and in some countries still is but English doctors/scientists made a mistake while reading it so they've settled using the letter O instead.
It actually has more to do with how it's pronounced: 0 is also called "oh," which is ridiculously similar to "o" (the letter O), and the similarity in writing is uncanny. The official symbol is *still* "0" as it denotes the absence of both A and B antigens.
Here in Mexico you know your blood type as soon as you are born because it's the procedure of standard care. I cannot believe that in US they don't know their blood type.
Seriously? US people aren’t that aware of their own blood type? Wow! Us Sri Lankan’s are so aware of it. We generally donate blood a lot as well for others.
UserX, not really sure where you were going with your answer, but there is NOTHING that all white people agree on. Americans are not just white either, there are citizens of all ethnicities here, and there is nothing that all of them agree on either. America DOES have a surprisingly poor healthcare system on the whole though.
hey, Im a 1st class donor (donated 25l plus) from Poland, it is the first time I fully grasped the type compatibility. thanks for the video. Im 0 RH + btw ;-)
I would hypothesize that we have evolved different blood-types in response to environmental conditions such as diseases and cancer-causative agents. Survival of the fittest = One blood type that is immune to a serious illness would be more likely to breed and pass on this trait to their children. As humans began to travel, these mutations of blood-type mingled and spread around.
D Angus I would say that it’s several human types and races that were isolated and decided to interbreed with newcomers. I know that certain populations are more commonly one blood group or another so that makes sense to me. Rh negatives are awesome in traits of the blood group but are likely to lose babies carried of a different blood type (father). So there are less of me. I think everyone is ‘the fittest’ just in different ways. Look up traits of each blood group. Rh negatives positives o’s a,b , and ab. (And whatever the hell H blood types are). It is so much more in depth than simple bodily processes. It governs everything from emotion to character. Super weird but every damn ab negative video I saw hit my personality and self/ being dead on accurately. Maybe the same will happen for u? Good ideas U gave me more stuff to think about. XD Peace n love AJ
Well O is a lack of blood type, and the way these actual blood types exist on red blood cells is by having layers of weird types of sugars get attached to each other. So I don't think there has really been a selection pressure that causes one population to all go to one blood type vs the other. If anything, with blood transfusions possible O neg would be selected against and AB Pos would be selected for.
Lmao I watched a movie once in which the guy kept on saying b positive throughout the movie whenever they were in trouble and in the end he explained that b positive was his blood type
My hypothesis: Biodiversity-in case a pathogen made to attack a blood type, members of a different one will still survive. But I obv haven't tested it.
Do you happen to know of a pathogen that attacks blood type proteins? Because evolution doesn't just pop up out of the blue protection mechanisms against stuff it hasn't encountered before.
I don't know of pathogens, but parasites come to mind. Maybe it messes up the blood suckers and THEN indirectly the pathogens who use them as a vector. It's either that, or we have alien hybrids integrated into the human population. I guess it's an ok explanation.
@@milanstevic8424 The reason why we reject other peoples blood types is well known in the science community by anyone with a firm grasp of immunology. It is no secret, and I would really like to know which "scientists" all these youtubers are talking about when they say the infamous phrase "Well, scientists still aren't sure". It all has to do with the AIRE gene, positive and negative BCR selection and VDJ recombinations. But that's an entire book worth of explanations. But trust me when I say, to "scientists" this is as much of a mystery as to why our body reacts in a hostile manner towards bacteria, i.e. it's no mystery at all. And you shouldn't take just any TH-cam video as "science".
Yeah, that's all fine and dandy... You could argue about AIRE, BCR, and VDJ until one of us got bored. But the question isn't how, but why would nature prefer a limited blood type diversity, instead of a complete diversity, or no diversity at all? Why would any blood type remain fully compatible with any other type? Many things in nature are either compatible or incompatible, typically by some very clever evolutive "design" -- but rarely things end up being partially compatible -- to me this suggest a crucial natural necessity that hasn't been discovered yet.
@@milanstevic8424 And if you're asking "why are there blood type proteins in the first place" the answer to that is the same as the answer to the question of why some of us have black hair and some brown, blonde, etc. It's coincidental mutations nature never found too bothersome to hammer out with evolution. Look at that latest video from SciShow about genomes, nature doesn't always do everything for a reason.
My blood type is AB- and I found out during a follow-up OBGYN appointment while I was pregnant. They normally take blood to check for things like blood type, HIV, diabetes, Hep. B, and a ton of other stuff in the pregnant woman.
A suggestion for future videos, even though this was fun and informative, I really would’ve liked it to go a bit deeper on blood types, explain them, explain Rh factor and so on. This is a science channel after all and people subscribing to it expect it. Best of luck in the future! :)
Thanks, Luka! We are exploring different formats and will be tweaking each video as we grow. Thanks for watching, and supporting our new channel :) - Cory
Michael, I think it's a good idea to ignore the source once you know it's reliable and stick with the info. It's just more facts one doesn't need to know.
most people in india know their blood type. i have visited hospitals several times and have checked it several times. and knowing the blood group is mandatory for driving tests. so all licence holders here know their blood group. even in schools blood groups are needed. so its normal here.
Man, i like these brief 8mins max videos! It’s like watching a short fast-paced documentary that’s so interesting and helpful! Thank you for making this channel 🙏
Dylan Young WRONG. Straight from Wikipedia: "Individuals with the rare Bombay phenotype (hh) do not express H antigen (also called substance H), the antigen which is present in blood group O. As a result, they cannot make A antigen (also called substance A) or B antigen (substance B) on their red blood cells, whatever alleles they may have of the A and B blood-group genes, because A antigen and B antigen are made from H antigen. For this reason people who have Bombay phenotype can donate red blood cells to any member of the ABO blood group system (unless some other blood factor gene, such as Rh, is incompatible), but they cannot receive blood from any member of the ABO blood group system (which always contains one or more of A, B or H antigens), but only from other people who have Bombay phenotype." They can only receive Hh blood type only. Not even O type blood is applicable.
coolkid23 so how is that true universal lol? That would mean that I can donate my blood to anyone and get blood from anyone period. That's what he was trying to say by true universal blood type. Btw O- can also give to any blood type but receive only O- blood type just like Hh.
I’m from Colombia. Knowing your blood type in Colombia is pretty common, mostly everyone in my school knew their blood type. But once I moved to Australia (at the age of 14), I’ve noticed that not many people know their blood type. I found it interesting because of the first and third world country differences. It is so beneficial to know your blood types for emergency situations.
In India our blood group is tested since birth and carry on our IDs so as to not waste time in testing! And did you guys reupload this? Was it on the Verge?
Because I'm RH B+ I've found out how to regrow my hair according to the food source to match my blood type & my hairs growing again with hardly no hair comming out 👍
Yes, my ophthalmologist tried to explain it to me once but, I must admit, it was some years ago now and my memory may not be perfect. But it was something along those lines, if you get my drift. Nevertheless, it wasn’t that 20/20 was perfect by any means.
Same in Latin America. It's curious how Americans are weirdly oblivious to some specific things that even people in developing countries like mine know. And we use Whatsapp. Most of my European friends use Whatsapp as well.
I have no idea what my blood type is and I don't really have a need to know it. And I use SMS pretty often. So no, all of Europe is not the same at all.
Jeff Pearson probably instant messaging apps like WhatsApp. I live in South Africa and we don't use SMS either. It's outdated and comparatively expensive.
I'm O- and I met 2 amazing girls Saturday night A- and AB- (also best friends/roommates) The three of us were mentally connected almost instantly and then the Rh negative thing was revealed within minutes. Surprise!? I was on cloud 9.
@@jackdaniels3127 i have my phone number registered in local blodd bank. They call me in case of emergency. For instance last year i donated blood to a patient having heart surgery. It doesn't matter if my blood is being transfused to a newborn baby or an adult, the only thing that matters is that it should save lives.
I love these videos, these videos are highly interesting and useful. The content is clear and sharp. Keep up the good work. You can transform an entire community.
I found that most people don't know their blood type. It is not even recorded in your medical records no matter how often you've visited your doctor. Ask and you'll see. So, I bought my own blood type kit which is very inexpensive and found out for myself. I also donated blood and it did match my findings. So, I do encourage you to find out your blood type as well. I did my kids too. Now we know.
I didn’t know mine till I got pregnant when I was 22. Not sure if I was ever told prior to that and just didn’t retain the info because at the time it didn’t seem important but boy do I remember it now. I am a negative (A) and when a negative gets pregnant they have to get RhoGAM shots. The 2nd pregnancy is where things can get dangerous. Due to my 1st child being a positive (O) my body may have made antibodies that could attack any future fetuses that may dare inhabit my uterus. I’m 35 now and still looking forward to pregnancy #2 but it sure won’t be an “oops”.
That's how I found out mine. I didn't get the second shot after my youngest. I'm not sure if that's because she's also rh- or if it's because I got my tubes tied so there really wasn't a point
I'm O- when I was young and starting my family I found out my blood group. After each of my first two babies I received a letter from the blood bank requesting that after my baby was 12 weeks old could I please donate a pint of my blood. I did donate a few times between having my children. It's painless and I'm always advocating that others donate their blood regardless of their group type. It's a nice feeling to think your blood may have saved a life.
That is the most badass class assignment. That beats my 9th grade biology story, where we dissected squids and afterwards our teacher cooked us calamari right there in the classroom
I have A+ blood. Can't remember how I found that out, though. Probably related to one of several surgeries I've had since I was a kid. I used to be a regular blood donor and also did apheresis [where they would draw out the blood from one arm, run it through a machine that separates the plasma and platelets (?), then put the rest back in via the other arm, a process which took about 4 hours as I recall].
If you are O- you can save everyone on earth, but only another O‐ can save you, while If you AB+ everyone can save you, but you can't save anyone. It is the eternal story of the hero and the princess who can't save herself
as an o- i find it a little weird that it wasn't even mentioned at any point that ALL other blood types could kill me, ONLY that i can give mine to everyone else...or did i miss that?
Just to clarify, when he talks about "receiving blood" what it really means is, receiving _red blood cells_ only. You do not receive the blood _plasma_ with a blood transfusion because it contains the antibodies which _would_ cause problems for anyone unless they are receiving the exact type blood they already have. The plasma is separated from blood when you donate whole blood. So that someone who receives donated blood is only receiving the red blood cells. For example, if an AB type person (The universal receiver) received type A whole blood, the anti-B antibodies in that donated whole blood would attack the AB recipient's B antigens. So to avoid that, only the red blood cells are transfused without the plasma which contains those antibodies.
I’m AB- and used to donate a lot for surgeries. The blood bank would call me and ask me to come in. I’m also CMV- , but getting called for that was rare. Now I take so many medications I can’t donate anymore.
In Japan its common for you to know your blood type from birth. So I knew I was bloodtype A since I was born. There is a whole culture around bloodtype in japan (its like the constellations in the west) where bloodtype determines your personality, your fate etc. edit: Just saw the part of the video where it discussed this lol
Before I learned about the belief in the horoscope aspect of blood types, I always thought it was bizarre that Japanese celebrities, especially women, had their blood type listed in articles about them.
+SharpOB Kind of in the middle. Some people believe it, some people dismiss it totally, and others - like me - are like "well there is no definite scientific proof for it to be true/false, so I'll just use it for fun". Actually, there have been some researches that concluded that there are no connections to personality traits, but I'm not believing those results because they only covered the 4 main bloodtypes, whereas bloodtypes are more than just 4. Also because when you do observe people and their blood types, there are waaay too many instances where the blood types and personality traits match up frighteningly. (I really REALLY don't get along well with blood type B people, even before I know what their blood type is) People who dismiss the link say that it's only a Barnum effect (go Google it), so I would like a more detailed study about blood types and personality including observations of the Barnum effect. THAT kind of experiment would definitely give us very good answers to the mysteries of blood type and personality correlation. Oh, BTW I am an AB blood type (not sure if positive or negative). My personality is really typical AB. lol
One correction -- the reaction to a transfusion of the wrong blood type is an "immune reaction", not an "auto-immune reaction". Auto-immune reactions are reactions against "self" -- meaning the immune system attacks cells that are part of the individual. In the case of a bad transfusion of blood, the immune system is attacking non-self antigens.
@@lonestarr1490 some blood types (O) are either more resistant to certain viruses (such as HIV) or more susceptible to others (such as the one that causes stomach ulcers, H. pylori). Might be hard to find the article I read about it, but it was very science-based.
Though some studies have shown that there's still a risk in transfusing O(-) blood to people with other types of blood, because there are still things we don't know that can trigger an immune reaction..
yes, just last week i read there are a few (3 main ones) subsets of O-neg...one called "weak" and then two others I don't recall the name of. Some Onegs can receive postive Rh blood transfusions and that makes me think that their blood is dangerous to give others to as a transfusion.. There are special blood tests to see if you are a subset and which, but those tests are costly. I think it was interracial people such as half white-half blacks with Oneg who were most likely not to be a "pure" enough Oneg. My choice of wording was insensitive, but you get the idea hopefully.
I am O and in constant blood giver, and always feel a bit weak from time to time, ah what the heck it's only blood, that's my contributions to humanity.
You give it and they sell it stop giving your gold away for free cuz they gunna make the sick pay for it your doing something good while they are not they don't give it away for free so why should we they need you not the other way around wake up please
I knew I was O- since forever. My family members all know their blood types to the Rh value. My colleagues in kindergarten and elementary school all knew their blood types. We also addressed blood typing when studying the human body in 4th, 6th and 8th grade (I chose Geometry and Physics over Biology in Highschool). I can ask anyone their blood type and, surely enough, they know the answer. Then, I discovered the common American...
The blood type diet posits that what you eat is critically linked to your type. The author has many adherents and many critics, but I've noticed a lot of recent interest in lectins, which he talks about. Interesting.
It doesn't matter to a doctor or a lab technician what blood type a person TELLS them they are. The sad fact is that most times the patient/person has their blood type wrong - because they read the agglutination tests backwards or simply were told the wrong type by family. So - every person gets retyped to verify and establish their blood group BEFORE a medical situation such as going to surgery or getting set up for receiving a unit of blood. In reality it doesn't matter if a person knows their type or says they know because no responsible doctor will allow a transfusion based on what a patient tells them their blood type is. They could kill someone that way. My mother said for years that she was B+ and we discovered she was in fact O+ so that's the way it is.
@@SusanKay- Yes GSW or similar for on the spot/ no time to spare situations - ie when John Lennon was brought in - basically life saving and absolute emergencies but even then Oneg packed cells are administered - not whole blood. Techs can do a blood type rapidly from blood on the IV needle in emergencies and deliver the correct units pretty quickly - if on hand. Then later will of course verify compatibility with SOP crossmatches.
@@SusanKay- Of course. We release uncrossmatched O neg to female traumas and O pos to male traumas. In those cases, the risk of a transfusion reaction is less than the patients immediate risk of dying.
There have been all kinds of studies on blood types and other health issues that they don't want to publish. There is a lot more known than they want us to know.
I am A- and very sickly. I once had to have synthetic blood given to me after bleeding out in surgery because there was not enough of my blood type at the time. I had to receive that synthetic blood for several days. Weird to think about.
Did someone say it was the "best" way? Perhaps it is just how a bunch of people happened to find out while actually doing something else like serving their country in a selfless way?
Maybe now it's easy to detect your blood type in an instant if you need an emergency transfusion. I had my blood type tested when I was a kid because my parents wanted to be sure I got the right blood type if I were to get into an accident or so.
I can receive any type of blood. So If I'm bleeding out, it doesn't matter what blood they give me I'll survive. So its awesome for me :) However, my blood can only sustain other people with AB+, that's why I said Its the worst blood type for the rest of the human race. (I'm implying that O- is the best for humanity, since its the universal donor)
Donate plasma please! No AB or D antibodies to cause reactions. Also donate platelets for the same reason. The need for platelets is huge because they expire after 5 days, unlike blood and plasma which can be frozen and stored much longer.
I wish I knew my blood type but I have no good reason to see my doctor right now (especially since it can be weeks until I would see one and spend hours waiting... Canadian Healthcare :) ) Also as far as I'm aware there aren't any clinics around me that actually take blood and everytime there is a mobile blood donation clinic thingy, something has always happened that kept me from going like being sick, busy with school/work, or other things. Perhaps when I have a couple bucks I'll try getting one of those kits and see what my blood type is just to satisfy my curiosity :) (One last thing... neither of my parents remember my blood type and its not printed on birth certificates here)
Don't they ask you to know your blood type to get a drivers license? In my country to get your driver's license you need to take a hospital blood typing exam to prove your blood type before they issue the driver's license to you.
In Portugal, at least when I was born, the hospital gave as small card with the blood type. Iphones and other smart phones also have the emergency app that opens with the phone blocked, where people can and should fill with blood type and all sorts of information relating to allergies or meds they're on. :)
I still remember getting my key chain fob for hitting the one gallon donor mark. Enough A+ to fill a milk jug. I hope it helped someone. I had to stop due to medications I take for Lupus.
Do you know your blood type? How’d you find out?
Verge Science my Mom has A 0 -
She toled me about it
Hi, Cory.
It's crazy that Americans don't know their blood type.
Rh incompatibility is a serious thing! I'm glad that you found out and were treated. It can cause serious harm to your child, or yourself, if unnoticed/untreated. - Cory
My Mum told me I am AB+
To all those who donate blood, I am still alive because of you. I have received about 20 blood transfusions because of blood cancer over the last 4 years and now it looks like i will be in long term remission. I wish I could thank every person whose blood has coursed through my body. (acute myeloid leukemia)
conniechloe53 you are very welcome. I’ve been donating blood since I was 17 years old and I’m 23 now and I won’t stop.
I donate and thank you.
I donate and 'You are welcome"!
Most welcome
Conniecloe53 • You are most welcome.
There are 2 antigens *A* and *B*
Blood group *A* - has *only A* antigens
Blood group *B* - has *only B* antigens
Blood group *AB* - has *both AB* antigens
Blood group *O* - has *neither A nor B* antigens
And there is an *additional protein* called *Rh factor*
If the Rh factor protein is *present* it is denoted by *+*
If the Rh factor protein is *absent* it is denoted by *-*
If a patient receives blood that has an antigen or protein that the patient's blood does not contain then the blood is *harmful* for the patient
If the patient receives blood that does not contain any antigen or protein that is not in the patient's blood (and some of the antigens or proteins that the patient's blood contains can be absent from the blood) then it is *safe* for the patient
Super interesting! Thanks for sharing :)
Bloodbank worker here: in an emergency sitation you can give a Rh neg. patient Rh pos. Bloodbags.
If its the first time, nothing happens because theres is no natural antibody against Rh D (which makes you Rh pos)
Burak Saritas wow nice to know
Shivam Mhaskar we learnt that in the tenth standard
Shivam Mhaskar Awesome comment, thank you 🙋🌸🙏
Nicely produced video, but a couple of corrections.
First, when your body's immune system attacks transfused red blood cells from a mismatched donor, it's not an "autoimmune" response as stated; autoimmune means attacking one's own cells.
Second, there is no hospital in the developed world that would ever take the word of a patient regarding their blood type at the time of a transfusion - particularly if it was from a do-it-yourself kit they ordered over the internet. If there isn't time to cross-match blood, the patient gets O negative; if there is time, they always get cross-matched. The risk of death from ABO incompatibility is too great to rely on an acutely ill person's memory of an infrequently relevant part of their medical history.
I am relieved that you write that they provide Negative blood! I used to be a frequent donor at a German University hospital in my youth and as a university student. From time to time, they called me in for bloodsamples for research purposes. I only knew that I had a rare blood type, but that was before the internet. Mine is B Neg, Kell and Cellano Pos.
I came to the comments to say the same thing.
The video also implies that someone might be a part of the Duffy blood group instead of the typical ABO groups. While that's true for the Hh (or Bombay) blood group they also referenced, it isn't true for Duffy. The Duffy blood group system is one of dozens that exist in humans. The presence or absence of Duffy antigens is in no way related to ABO status.
The danger of receiving Rh incompatible blood is also overstated here. The main risk of receiving Rh incompatible red cells is the formation of antibodies against the Rh factor, which would only cause complications in future transfusions. Pre-transfusion testing in the blood bank (which is not performed by doctors, but by certified medical laboratory scientists) always includes a test that screens for these antibodies whenever time allows. In emergency situations, doctors may decide the need for blood products is urgent enough to transfuse before this testing is complete, despite the risk. If any unexpected antibodies are detected, they are identified and appropriate products are chosen accordingly.
Yep that's the one reason I try to donate blood. I'm O negative and hospitals can never have enough of my blood type.
True. I was typed each time, even though I have known my blood type since I was a child. Apparently, when my siblings and I were born, our blood was typed and my parents were given that information.
I'm AB- and have a blood donor card to prove it. My uncle, my mom and I are the only 3 in our family with Ab-. I love to donate blood but hate how excited the nurses get when they find out. They would probably lock me up somewhere and just keep draining me nonstop if it wouldn't kill me. I feel like I need to tell someone when and where I will be donating blood and if I'm not out by a certain time call the police.
My father was blood type A- and when he received the universal blood type "O" he would become very ill. When his doctor found out his children were A- he requested we do designated donations for my father as we all were A-. He never became ill when he received "A-" blood. I agree that our blood is very unique, meaning everyone. Hopefully one day scientists will find out more.
We not all the same.
O- is the universal donor blood as stated in this video. Maybe they gave him O+ in error?
@@cynthiacole6140 Last week, I just read that there are a few subcategories under rh-negative and so some are really not that rh negative. besides, what country is this guy from that medical professionals made such a huge mistake so often?!
in Latin America the blood type is in your ID.
David Ricardo and it is not rare that you know your blood type, its common knowledge
Simón indeed
Yep.
its there in many parts of the world
Not in Brazil
i'm skeptical when they say someone like william harvey "discovered" that blood flowed through the body. many ancient cultures could of already have been aware of this, like the Egyptians
Evan DeWolf exactly they did all types of weird sacrifices
I think that the Egyptians did blood transfusions. One of those things that got lost when the library of Alexandria was burned. We've since found a few depictions.
Agree
Thank you! I'm the same way about those kinds of statements.
"could have" not "could of"
There is absolutely no way that a doctor would transfuse blood on the basis of what the patient thought their blood type was. The chances of that patient incorrectly remembering it is just too high. Thus knowing your blood type is just not that practically useful.
Transfusions are a particularly tightly regulated area of medicine. Patients blood will always be checked before a transfusion, and if this isnt possible because of an emergency they will be given O -ve. I've seen patients have their blood cross matched (checked) multiple times due to having different operations on different days. The blood bank won't even trust an old cross match result from a month earlier, it will be rechecked again.
- Final year medical student NZ
Absolutely correct!
Sound freakin logical. People make mistakes. And the cost of simple paper mistake - painful death instead of simple procedure.
Yeah, they can take extra 10min to recheck your blood group. Or give 0-
Kiwituber o
Correct. Absolutely. Here in the hospital i work at ur GXM is only valid for 3 days. 72 hours. After that nope you gotta do it again
Yes, and after the patient has been matched with a correct donor a crossmatch between the patients blood and the donor is also always done before hand, just to make 100% sure there isn't anything that anyone has missed.
Yay, finally a subject I can elaborate on! Warning, this will be a long read:
Your blood type depends on what antigens are on the outside of your red blood cells. Think of antigens as small markers that cover your red blood cells. As the video mentioned, the main blood types in humans are from the ABO blood group. People that have type AB blood have A- and B-antigens on their red blood cells, while people with type O blood have neither A- nor B-antigens on theirs.
It's important to give patients blood, that is compatible with their ABO blood type, like the chart at 2:53 indicates. That is because the body automatically creates antibodies against the ABO antigens, that their own red blood cells don't have. E.g. people with type O blood automatically have antibodies against A- and B-antigens (anti-A and anti-B antibodies), while people with blood type A only have antibodies against B-antigens (anti-B antibodies). What are antibodies, you might ask? In our case here, they're little compounds, that can latch onto their corresponding antigen, e.g. the anti-B can latch onto B-antigens on someones red blood cells. When an antibody latches onto an antigen, it kind of tells the body, that this is a foreign object, and this can cause the body to attack the red blood cell. Our immune system also uses antibodies to attack e.g. bacteria and other stuff.
The ABO blood group system is very important, precisely because we automatically create these antibodies, against the antigens we don't have. So if you have type A blood, your blood is already filled with anti-B antibodies in your blood, even if your body has never actually "seen" a B-antigen before.
What's this about positive and negative blood then? This is another important antigen, the Rh-D antigen (that's why one of the circles on the blood type card at 4:24 says anti-D, because there are antibodies against the Rh-D antigen on that circle, if you have the Rh-D antigen on your red blood cells). You might've heard people say "I'm Rhesus positive" or something like that. That's referring to the Rh-D antigen. This antigen is very important, because it can also create some complications, when people get blood transfusions. However, people who are "Rhesus negative" don't automatically create antibodies against the Rh-D antigen - we only create it when our bodies are exposed to the Rh-D antigen. That's (also) why the ABO blood group system is kind of special.
We also have other blood group systems, like the Duffy blood group system mentioned in the video. In fact, the Rh-D antigen I mentioned earlier is part of a bigger Rh blood group system. Some of the most important "secondary" blood group systems (with some of their important antigens in parentheses) are the Rh system (D, C, c, E, e), the Kell system (K, k, Kpa, Kpb), the Duffy system (Fya, Fyb), the Kidd system (Jka, Jkb), the Lewis system (Lea, Leb), the MNS system (M, N, S, s) and the Lutheran system (Lua, Lub).
Everyone has some of these antigens on their red blood cells, along with their ABO blood type. E.g you can have A+ blood (i.e. A-antigen and RhD-antigens on your red blood cells), and also have K, E, Jka and C antigens alongside them.
However, these "secondary" blood group systems aren't as important (with the exception of Rh-D) for normal people, since most people only naturally have antibodies against the ABO blood group system. The body doesn't automatically create antibodies against these "secondary" antigens. However (!), if someone *has* antibodies against some of these "secondary" antigens, they'll get blood that corresponds to their ABO/RhD type *AND* that's negative for whatever "irregular" antibodies they've produced against these "secondary" antigens. So if you're hospitalised, and you need a blood transfusion, then the blood bank will test you for your ABO/RhD blood type, and they'll also do an "antibody screen test" against these "irregular" antibodies...unless you need blood *right now* - then you'll get O- blood, as the video mentioned.
Phew...if anyone spots any mistakes, please, feel free to correct me! I'm still just a poor student, haha.
Ecolopa +
Ecolopa wonder how many people know their 'irregular antibodies'
I had a friend who said she had Z type blood. She was dead serious too, any truth to it though?
Wait, you said that if an Rh- patient gets Rh+ blood, it will create complications, yet you also said that Rh- patient's immune system doesn't automatically produce Rh antibodies. I don't get it...
@тралль илитный
Sorry, I wasn't too clear when I wrote that. The immune system doesn't automatically produce Rh-antibodies, but if you ever receive Rh+ blood, and your type is Rh-, you're *incredibly* likely to produce new antibodies against the Rh-antigen. It takes a while for these antibodies to be produced, so they often don't cause any complications when you get the blood, but we really wanna avoid creating these 'unnecessary' Rh-antibodies. Especially with young women, because if they ever get pregnant with an Rh+ child, the mothers Rh-antibodies could cross the placenta and cause haemolysis in the fetus. These Rh-antibodies could also cause problems in the future, if the person ever needs to get another blood transfusion.
There are probably other scenarios, where we wouldn't want a person to produce Rh-antibodies, but I'm still just a student, so this is the limit of what I can answer 😅
I was a regular donor until I became ill a few years ago, that's when I found out my blood type is A2+. Then I became a Plasma donor for a while. Blood plasma is given to Haemophiliacs to control bleeding. It's a weird procedure but I was happy to be able to help. I'm sad that I can no longer be a donor, but I'm pleased that I was able to for so long.
Did they pay you for the Plasma?
No, in New Zealand all blood donations of all types are voluntary. However, they don't charge for blood products when you get a transfusion, either, so I guess it balances out.
Women in childbirth and accident victims need it more than hemovampires.
Haemophiliacs have a life-threatening condition that they are born with. Everyone who needs blood products have equal rights to what is available. Your comment is deeply offensive.
Thank you, Joe. Are there really people who use blood products recreationally? That's completely outside my experience - and comfort zone!
Holy shit there are actually people who grow up without knowing their blood type WTF, where i'm from we all get tested at birth so we know all our life about it.
I wish I knew mine :(
Just ask your mom what's her blood type. Chances are you are the same. Mothers gets tested during pregnancy and it includes blood typing which is important because the mother and child with incompatible blood types tends to lead to miscarriage.
European Robin you can just go get a blood test. They'll tell your blood group, haemoglobin, everything.
Mia Dreamkiller
10 Kids how ???
Alejandro Yeah. Same man.
as an O- from a small city on the great plains I remember being contacted by the police to please report to the hospital to donate to another O- who was in dire straits. one was a baby the other was a minister.
Nobody can force you to do that. It's a crime! It's not your fault they were involved in risky situations.
Your choice to donate always.That said I’m happy you did,but no you can’t be forced to
wow. that is rather creepy! I hope you chose to save the baby. The minister's god shoulda saved him.
For everyone who is Rh - ( I’m O) and donated blood . I wouldn’t be here without you guys . I have systemic Lupus and when I gave birth to my daughter I almost had Mitral Valve prolapse. I now have permanent cardiomyopathy and leaky mitral valve . I get a echocardiogram every 6 months with my cardiologist. I always wished I could donate my blood because I know only 15% in the world has my blood type . Also I’m so grateful for the RhoGAM shot . I wouldn’t have my two miracle babies
only 7% of the world population is Rh neg, I thought it would be much higher
0 neg . Found out when donating the first time and they are after my blood like vampires :-D
CurlyChrizz lol me too, they will NEVER leave you alone now!
It is since it doesn't have the A or B antigen and is Rh factor negative so it's safe to give to any blood type.
Similarly AB+ is a universal receiver.
Right! I have emails and calls all the time.
CurlyChrizz
Also very hard for you to get blood, heaven forgive if you've ever the need to.
:D
I have my masters in Medical Laboratory Science. In the developed world, knowing your blood type is trivial. UNDER NO CIRCUMSTANCES would you ever receive blood based off of what you say your blood type is. Compatibility of the blood is tested before in the lab.
In India, it's mentioned in I'd cards cause in case of emergency when u can't communicate, the blood can be arranged. Of course, blood is tested anyway before infusion.
Wrong info sweety
@@vandanauniyal2815 That is highly unlikely because it is extremely dangerous. In no case would blood be set up for a patient based on information from some card. Even of the patient was conscious and told us his blood type we would always draw a new pink top for a type and screen. Blood cannot be 'arranged' without a complete type, screen and crossmatch, even in third world countries!
A quick correction there, India ain't third world, it's an NIC.
Pretty close though
Pls ignore spelling mistakes, have autocorrect program on my cell, can't remove it
Type O negative is not just a useful blood type,but a great band as well.
I've been wanting to know my blood type since high school and always wanted to donate blood, but whenever the donation buses come around I always end up having a bit of a cold :/ This year.
Dont u have a driving licence? I am damn sure we need a blood test for driving test
I never had to get a blood test for my license. It is not common in the USA.
Lashan actually you can go to the blood connection's physical locations ^^ they send out the vans but there is an actual building that's always open for donors
You can come to the nearest blood donation center when you're healthy. No need to wait.
Lashan
Get it typed next visit to your doctor - no big deal, he or she probably has it in your chart, call and ask.
High 5 to all my A+ blood family out there. 🙏
A+🙏
A+ here
@Jeff I live in outback Australia on a remote property so I think we'll be ok.
A+🙏
😢😭🥺
I'm AB- as are my parents and both siblings. I think that makes our situation pretty rare!
My uncle, my mom and I are the only three people in our family with AB- blood. If you have ever donated blood, do the nurse get over excited when they find out like the do with me?
ooh wow, I’m an AB+ it’s so cool that ur AB- cuz that’s rly rare
My friend got invited to Germany(Btw, we are from Indonesia) to donor her blood because her blood type is AB-, all the accommodation and tickets are pay by the hospital and in her family only her and her brother is type AB-, it is really rare..
@@afiffathannur4718 really? mine are ab- too tho, also Indonesian
@@mrluthfians01 are you perhaps have European grand parents? Or somewhere along your ancestor tree? I read somewhere that AB- is more likely to be found in Europe (I believe 1 of the samples is taken from Netherlands which is make sense because the history of colonial back in the day) even though there are still rare.. me and my friends is also had dutch ancestor (mine was my great great great great grandfather from my mother side, and my my friends is from her great great grandfather) but my blood type is O+.
Lol. This was most probably designed for the US audieces. In Poland I don't know anyone who would not know their blood type.
I just asked my coworkers and 50% knew. They are however active donors of blood.
Most people in my family know. My dad was in the military, his is on his old dog tags
he does say say in many parts of the world. I'm a blood donor so I know mine.
Same as in India
A ja znam tylko 2 osoby które znają swój :P
I’m currently in the Army and I rarely see anyone with my A- blood type. It’s a lonely life :(.
Awe poor thing🥺
I am B- feel the same way
My blonde friend Abbey is A-, they are out there, keep looking
I am A-
I'm A negative!
And yiu get visiters in ur childhood. ... the 👽 don't lie we know u, ur being watched b them.
Don't know my blood type and I'm 19. But if/when I ever have to do a blood test imma pass out 100%. I can't stand it!
Same
Yep I had 4 drops taken out for a blood type test and I threw up and passed out
I thought your blood type is revealed once you're born. That's how it is where I'm from.
@@jaydenball5644 not here
FYI blood type O was actually 0 (zero) and in some countries still is but English doctors/scientists made a mistake while reading it so they've settled using the letter O instead.
It actually has more to do with how it's pronounced: 0 is also called "oh," which is ridiculously similar to "o" (the letter O), and the similarity in writing is uncanny. The official symbol is *still* "0" as it denotes the absence of both A and B antigens.
Just like when we say phone numbers; zero is pronounced as *oh*
Here in Serbia, it’s 0.. we never say “O type” it’s always “nulta”
Zero in Poland as well. Never O.
I read it was O for "Ohne" in german which meant Zero or null (no antigens).
Here in Mexico you know your blood type as soon as you are born because it's the procedure of standard care.
I cannot believe that in US they don't know their blood type.
Same in Brazil, I think anywhere with free health care have these things sorted out
Unless, you ask whenever you go for lab tests and in the military, they def let you know what blood type you are.
Seriously? US people aren’t that aware of their own blood type? Wow! Us Sri Lankan’s are so aware of it. We generally donate blood a lot as well for others.
white people don't care about blood types.
UserX, not really sure where you were going with your answer, but there is NOTHING that all white people agree on. Americans are not just white either, there are citizens of all ethnicities here, and there is nothing that all of them agree on either. America DOES have a surprisingly poor healthcare system on the whole though.
You must not be white
what does their skin color have to do with it
Nah, just the vergesplainers. They're kinda dense
The HH blood type is also called Bombay blood type.
Lol as soon as they mentioned the Hh blood group and India was popped out, I automatically thought of Bombay.
hey, Im a 1st class donor (donated 25l plus) from Poland, it is the first time I fully grasped the type compatibility. thanks for the video. Im 0 RH + btw ;-)
I would hypothesize that we have evolved different blood-types in response to environmental conditions such as diseases and cancer-causative agents. Survival of the fittest = One blood type that is immune to a serious illness would be more likely to breed and pass on this trait to their children. As humans began to travel, these mutations of blood-type mingled and spread around.
D Angus I would say that it’s several human types and races that were isolated and decided to interbreed with newcomers. I know that certain populations are more commonly one blood group or another so that makes sense to me. Rh negatives are awesome in traits of the blood group but are likely to lose babies carried of a different blood type (father). So there are less of me. I think everyone is ‘the fittest’ just in different ways. Look up traits of each blood group. Rh negatives positives o’s a,b , and ab. (And whatever the hell H blood types are). It is so much more in depth than simple bodily processes. It governs everything from emotion to character. Super weird but every damn ab negative video I saw hit my personality and self/ being dead on accurately. Maybe the same will happen for u? Good ideas U gave me more stuff to think about. XD
Peace n love
AJ
Well O is a lack of blood type, and the way these actual blood types exist on red blood cells is by having layers of weird types of sugars get attached to each other. So I don't think there has really been a selection pressure that causes one population to all go to one blood type vs the other. If anything, with blood transfusions possible O neg would be selected against and AB Pos would be selected for.
Sicle cell anemia and lactose tolerence are the evident traits....blood is but one factor, and that is often inconsistent.
I find it curious the different blood types happened around the time of the last ice age.
@@OverUnity7734 AB blood is only about 2000years old
Me: Whats your blood type, quickly you're losing blood!
Grandfather: B Positive
Me: I'M TRYING MY BEST HERE
Trying to refrain from laughter....that was a good one...whether or not you meant it as a joke...dunno
Lmao I watched a movie once in which the guy kept on saying b positive throughout the movie whenever they were in trouble and in the end he explained that b positive was his blood type
Took me a second LOL
"The life is in the blood"
"The blood cries out from the ground"
My hypothesis: Biodiversity-in case a pathogen made to attack a blood type, members of a different one will still survive. But I obv haven't tested it.
Do you happen to know of a pathogen that attacks blood type proteins? Because evolution doesn't just pop up out of the blue protection mechanisms against stuff it hasn't encountered before.
I don't know of pathogens, but parasites come to mind. Maybe it messes up the blood suckers and THEN indirectly the pathogens who use them as a vector.
It's either that, or we have alien hybrids integrated into the human population. I guess it's an ok explanation.
@@milanstevic8424 The reason why we reject other peoples blood types is well known in the science community by anyone with a firm grasp of immunology. It is no secret, and I would really like to know which "scientists" all these youtubers are talking about when they say the infamous phrase "Well, scientists still aren't sure".
It all has to do with the AIRE gene, positive and negative BCR selection and VDJ recombinations. But that's an entire book worth of explanations. But trust me when I say, to "scientists" this is as much of a mystery as to why our body reacts in a hostile manner towards bacteria, i.e. it's no mystery at all.
And you shouldn't take just any TH-cam video as "science".
Yeah, that's all fine and dandy... You could argue about AIRE, BCR, and VDJ until one of us got bored. But the question isn't how, but why would nature prefer a limited blood type diversity, instead of a complete diversity, or no diversity at all? Why would any blood type remain fully compatible with any other type?
Many things in nature are either compatible or incompatible, typically by some very clever evolutive "design" -- but rarely things end up being partially compatible -- to me this suggest a crucial natural necessity that hasn't been discovered yet.
@@milanstevic8424 And if you're asking "why are there blood type proteins in the first place" the answer to that is the same as the answer to the question of why some of us have black hair and some brown, blonde, etc. It's coincidental mutations nature never found too bothersome to hammer out with evolution. Look at that latest video from SciShow about genomes, nature doesn't always do everything for a reason.
Fascinating, important, and entertaining stuff guys! Keep 'em coming please!
Kiho Son 7ri6
My blood type is AB- and I found out during a follow-up OBGYN appointment while I was pregnant. They normally take blood to check for things like blood type, HIV, diabetes, Hep. B, and a ton of other stuff in the pregnant woman.
Aurelia Astrea AB-pregnant people have to have a shot so the baby isn't harmed.
I am AB- too, never had a shot, have two daughters with no problem
A suggestion for future videos, even though this was fun and informative, I really would’ve liked it to go a bit deeper on blood types, explain them, explain Rh factor and so on. This is a science channel after all and people subscribing to it expect it. Best of luck in the future! :)
Thanks, Luka! We are exploring different formats and will be tweaking each video as we grow. Thanks for watching, and supporting our new channel :) - Cory
Wait I thought it's normal for one to know their blood type... I just know it and I don't even know who told me my blood type.
So, you don't know the source of information, you just trust it as fact... keep up the good work.
Michael, I think it's a good idea to ignore the source once you know it's reliable and stick with the info. It's just more facts one doesn't need to know.
No. I'm from the UK, and most people do not know their blood type.
most people in india know their blood type. i have visited hospitals several times and have checked it several times. and knowing the blood group is mandatory for driving tests. so all licence holders here know their blood group. even in schools blood groups are needed. so its normal here.
Sanjeev kumar Kurup right I almost forgot that I filled in blood type in some school info form.
I've got optimistic blood, B+.
👍
Mine is awed and optimistic 😄 O! Positive!! 💖
Me toi
Cute!
MrRedstardude my blood doesn’t see the good in anything; B-
Man, i like these brief 8mins max videos! It’s like watching a short fast-paced documentary that’s so interesting and helpful! Thank you for making this channel 🙏
I coud spend my blood to everyone, but when I need blood, I need my own Type 0- blood=D
Lord Cekrom at least your not the bombay blood group its ultra rare and is the true unversal blood type
Dylan Young WRONG. Straight from Wikipedia: "Individuals with the rare Bombay phenotype (hh) do not express H antigen (also called substance H), the antigen which is present in blood group O. As a result, they cannot make A antigen (also called substance A) or B antigen (substance B) on their red blood cells, whatever alleles they may have of the A and B blood-group genes, because A antigen and B antigen are made from H antigen. For this reason people who have Bombay phenotype can donate red blood cells to any member of the ABO blood group system (unless some other blood factor gene, such as Rh, is incompatible), but they cannot receive blood from any member of the ABO blood group system (which always contains one or more of A, B or H antigens), but only from other people who have Bombay phenotype."
They can only receive Hh blood type only. Not even O type blood is applicable.
Same here except I can't donate because I lived in Germany during the mad cow epidemic
Sahil Pethe um RIGHT. That’s what he said, it’s the only type that can give universally but only receive its own type
coolkid23 so how is that true universal lol? That would mean that I can donate my blood to anyone and get blood from anyone period. That's what he was trying to say by true universal blood type. Btw O- can also give to any blood type but receive only O- blood type just like Hh.
I’m from Colombia. Knowing your blood type in Colombia is pretty common, mostly everyone in my school knew their blood type. But once I moved to Australia (at the age of 14), I’ve noticed that not many people know their blood type. I found it interesting because of the first and third world country differences. It is so beneficial to know your blood types for emergency situations.
Exactly 💯
In India our blood group is tested since birth and carry on our IDs so as to not waste time in testing!
And did you guys reupload this?
Was it on the Verge?
Harshit S Ikr! I find it so odd that people don't get it tested even after they're adults.!
Harshit S Yeah man. Same
Ggesus tf?
Shazil Salim and vagene
Ggesus 😱
Because I'm RH B+ I've found out how to regrow my hair according to the food source to match my blood type & my hairs growing again with hardly no hair comming out 👍
I'm A negative. Can I grow my hair and how?
@@searles1224
I'm A negative
I'm the same B+ Rh neg
@@renee2641 B+ rh negative is not a blood type. Your either B+ or B-
@@rnbpeachy5683 well guess I'm not human then
I'm A+. For about 50 years I thought it meant A plus, and I was kind of pleased with that.
Me too... :)
Me too A+
LOL. I thought having 20/20 vision was good until I was told it meant 80% of the population could see better.
@@MTMabowels Oh, I didn't know that either.
Yes, my ophthalmologist tried to explain it to me once but, I must admit, it was some years ago now and my memory may not be perfect. But it was something along those lines, if you get my drift. Nevertheless, it wasn’t that 20/20 was perfect by any means.
At least here in Europe, it's really rare NOT to know your blood type.
Also, it's been a while since the last time we used SMS.
Pablo Aragunde If you don't use SMS, then what do you use?
Same in Latin America. It's curious how Americans are weirdly oblivious to some specific things that even people in developing countries like mine know.
And we use Whatsapp. Most of my European friends use Whatsapp as well.
I have no idea what my blood type is and I don't really have a need to know it. And I use SMS pretty often. So no, all of Europe is not the same at all.
look at you! so proud of your ignorance! how cute
Jeff Pearson probably instant messaging apps like WhatsApp. I live in South Africa and we don't use SMS either. It's outdated and comparatively expensive.
I'm O- and I met 2 amazing girls Saturday night A- and AB- (also best friends/roommates) The three of us were mentally connected almost instantly and then the Rh negative thing was revealed within minutes. Surprise!? I was on cloud 9.
I am also A+! There is a 12.5% chance (more or less accurate) that you, reading this comment, are as well!
Pentox the most common is O+ i think
i have a+ too and a donor as well,if u ever needed knock me ill send u by email .
shadman sakib khan, how'll you send by email?
Pentox Actually 34% of the population is A+
Avinandan Mondal That is True for me and I'm A+
I am O negative and a regular Donor 😊
I now feel 1% less scared of losing blood.
Do you ever think about donating to newborns and babies like that one guy that had O- blood, he retired already but he would always be donating
@@jackdaniels3127 i have my phone number registered in local blodd bank. They call me in case of emergency. For instance last year i donated blood to a patient having heart surgery. It doesn't matter if my blood is being transfused to a newborn baby or an adult, the only thing that matters is that it should save lives.
Preet Singh Dhandwar wow thats pretty cool i wish i could do that, but i dont even know my blood type
It is advisable for rare blood type to have own blood bank and storing some blood for emergency that may occur.
ab+ team cmon!!!
like if u ab+!!!
RafBenCas İ salute you my friend! AB+❤️🙏
AB+ and literally only found out today.
finally found my team lmao
Me too AB+
AB+ 🖐🥰
I love these videos, these videos are highly interesting and useful. The content is clear and sharp. Keep up the good work. You can transform an entire community.
I found that most people don't know their blood type. It is not even recorded in your medical records no matter how often you've visited your doctor. Ask and you'll see. So, I bought my own blood type kit which is very inexpensive and found out for myself. I also donated blood and it did match my findings. So, I do encourage you to find out your blood type as well. I did my kids too. Now we know.
All americans are type at birth fyi its on the gov birth certificate the track o negs i am one i know this
When you’re type A but you be getting straight Fs at school😢
hahaha
r a l i ‘ i x a v i e r o it's negative brain factor.😂
your going to catch the pedestrian Flu ,,,, think.
lol, aweeeee
You still speciAl 😉
You're too smart for brainwashing
I didn’t know mine till I got pregnant when I was 22. Not sure if I was ever told prior to that and just didn’t retain the info because at the time it didn’t seem important but boy do I remember it now. I am a negative (A) and when a negative gets pregnant they have to get RhoGAM shots. The 2nd pregnancy is where things can get dangerous. Due to my 1st child being a positive (O) my body may have made antibodies that could attack any future fetuses that may dare inhabit my uterus. I’m 35 now and still looking forward to pregnancy #2 but it sure won’t be an “oops”.
That's how I found out mine. I didn't get the second shot after my youngest. I'm not sure if that's because she's also rh- or if it's because I got my tubes tied so there really wasn't a point
Stalin Did Nothing Wrong why is that ur username
I didn't know until my first pregnancy either. O- here...
I'm A- too. I found out when I had leukaemia and needed lots of blood and platelet transfusions.
Th3 Troop3r[TLS] iil
That moment when you realise you can take anything because you are AB+😎
I'm AB too but negative
(I think, I'm not really sure)
That moment when you realise you can give anything because you are O-😎
Rafly Fernanda
But you can only recieve O- which is not good.
Yeah? What about "that moment"?
I am just fine with 0+ ... Its so common in my country. Never have short supply for 0+ 😂😂😂
I'm O- when I was young and starting my family I found out my blood group. After each of my first two babies I received a letter from the blood bank requesting that after my baby was 12 weeks old could I please donate a pint of my blood. I did donate a few times between having my children. It's painless and I'm always advocating that others donate their blood regardless of their group type. It's a nice feeling to think your blood may have saved a life.
O+ We typed our own blood in 9th Grade biology class.
That is the most badass class assignment. That beats my 9th grade biology story, where we dissected squids and afterwards our teacher cooked us calamari right there in the classroom
We did the same thing in 8th grade
Found out that my bloodtype is B+
Hi Paul Mayer I saw your post I found out I was A- also in biology class way back thank god for biology classes
Same. A-
I have A+ blood. Can't remember how I found that out, though. Probably related to one of several surgeries I've had since I was a kid. I used to be a regular blood donor and also did apheresis [where they would draw out the blood from one arm, run it through a machine that separates the plasma and platelets (?), then put the rest back in via the other arm, a process which took about 4 hours as I recall].
If you are O- you can save everyone on earth, but only another O‐ can save you, while If you AB+ everyone can save you, but you can't save anyone. It is the eternal story of the hero and the princess who can't save herself
O negs need their own breeding/dating sites. We need to respect our heritage by only breeding with each other.
Love this new channel. Answering questions I never knew I had until I saw the headline.
We vampire's don't care.
Oh good...I was worried about you guys..
I heard you feel very weird with AB+ :)
Turn me, I beg you
You wouldn't be able to find a vein in me anyway 😄 all of mine have been used and abused ( not a drug addict )
Well we don't care about type, but some of you really need to cut back on your LDL.
as an o- i find it a little weird that it wasn't even mentioned at any point that ALL other blood types could kill me, ONLY that i can give mine to everyone else...or did i miss that?
Wow, I knew my bloodgroup but never thought so deeply about it. Great video✌️
Rh O Negative and I am a regular blood donor 😁 easiest way to save a life!
Pff, why would you mix your royal extraterrestrial blood with inferior blood lines? 🤔
@@Exxperiment626 because if someone like another O neg person needs it, it can be given. I’m o negative as well
Just to clarify, when he talks about "receiving blood" what it really means is, receiving _red blood cells_ only. You do not receive the blood _plasma_ with a blood transfusion because it contains the antibodies which _would_ cause problems for anyone unless they are receiving the exact type blood they already have. The plasma is separated from blood when you donate whole blood. So that someone who receives donated blood is only receiving the red blood cells. For example, if an AB type person (The universal receiver) received type A whole blood, the anti-B antibodies in that donated whole blood would attack the AB recipient's B antigens. So to avoid that, only the red blood cells are transfused without the plasma which contains those antibodies.
I’m type B- so I’m going to have to ask forgiveness when I say STFU! 😂
No you dont... Lol... O- here btw
A- Negative here😘😌
OMAR BONITA me too!!
Samee
A- here also.
Me too A negative
Hello fellow martian
O- Regular donor, also CMV- which means my blood can be safely given to babies which is great to know ^^
Same thing here. They got me out to a special donation session because of that virus we don't have. : )
I’m AB- and used to donate a lot for surgeries. The blood bank would call me and ask me to come in. I’m also CMV- , but getting called for that was rare. Now I take so many medications I can’t donate anymore.
In Japan its common for you to know your blood type from birth. So I knew I was bloodtype A since I was born. There is a whole culture around bloodtype in japan (its like the constellations in the west) where bloodtype determines your personality, your fate etc.
edit: Just saw the part of the video where it discussed this lol
Is it considered bullshit in Japan, too?
im curious too
@@sharp14x some non-educated believe it
Before I learned about the belief in the horoscope aspect of blood types, I always thought it was bizarre that Japanese celebrities, especially women, had their blood type listed in articles about them.
+SharpOB
Kind of in the middle. Some people believe it, some people dismiss it totally, and others - like me - are like "well there is no definite scientific proof for it to be true/false, so I'll just use it for fun".
Actually, there have been some researches that concluded that there are no connections to personality traits, but I'm not believing those results because they only covered the 4 main bloodtypes, whereas bloodtypes are more than just 4. Also because when you do observe people and their blood types, there are waaay too many instances where the blood types and personality traits match up frighteningly. (I really REALLY don't get along well with blood type B people, even before I know what their blood type is)
People who dismiss the link say that it's only a Barnum effect (go Google it), so I would like a more detailed study about blood types and personality including observations of the Barnum effect. THAT kind of experiment would definitely give us very good answers to the mysteries of blood type and personality correlation.
Oh, BTW I am an AB blood type (not sure if positive or negative). My personality is really typical AB. lol
Where does A negative come from?
O negative here. 🤗
I’m O RH NEG TOO
AB can only receive O-, but O+ are the true survivor. Not only can we use anyone's blood, but we tend to have higher resistances.
B+.
Being typed was part of the initial blood-work when I became pregnant.
Loved the video. Keep on sharing these
One correction -- the reaction to a transfusion of the wrong blood type is an "immune reaction", not an "auto-immune reaction". Auto-immune reactions are reactions against "self" -- meaning the immune system attacks cells that are part of the individual. In the case of a bad transfusion of blood, the immune system is attacking non-self antigens.
its beneficial for a species to have different blood types to combat infections.
Dylan T Sounds plausible at first glance. But then: Which bacteria or viruses exactly do care about your blood type?
@@lonestarr1490 some blood types (O) are either more resistant to certain viruses (such as HIV) or more susceptible to others (such as the one that causes stomach ulcers, H. pylori). Might be hard to find the article I read about it, but it was very science-based.
I've had my blood taken so many times, yet I still don't know what I am...
(Scrolling down the comments, I now feel like an idiot...)
Donating or just blood samples for when you are sick? The first time I ever donated blood, they sent me a card with my blood type written on it, AB-.
Though some studies have shown that there's still a risk in transfusing O(-) blood to people with other types of blood, because there are still things we don't know that can trigger an immune reaction..
yes, just last week i read there are a few (3 main ones) subsets of O-neg...one called "weak" and then two others I don't recall the name of. Some Onegs can receive postive Rh blood transfusions and that makes me think that their blood is dangerous to give others to as a transfusion.. There are special blood tests to see if you are a subset and which, but those tests are costly. I think it was interracial people such as half white-half blacks with Oneg who were most likely not to be a "pure" enough Oneg. My choice of wording was insensitive, but you get the idea hopefully.
I am O and in constant blood giver, and always feel a bit weak from time to time, ah what the heck it's only blood, that's my contributions to humanity.
You give it and they sell it stop giving your gold away for free cuz they gunna make the sick pay for it your doing something good while they are not they don't give it away for free so why should we they need you not the other way around wake up please
I knew I was O- since forever. My family members all know their blood types to the Rh value. My colleagues in kindergarten and elementary school all knew their blood types. We also addressed blood typing when studying the human body in 4th, 6th and 8th grade (I chose Geometry and Physics over Biology in Highschool). I can ask anyone their blood type and, surely enough, they know the answer.
Then, I discovered the common American...
Blood type research is going to be crucial in curing dread diseases
wait so nobody can give me their type of blood unless they’re the same as me , but i can still give them all my blood ? that honestly seems unfair
AB+ here. I can receive anything you throw at me.
Where are you from if you do not mind me asking?
me too im ab+
It’s sad.. My blood type is like my eating habits 😂
@@badgerpa9 | North Macedonia
@@sakuya9017 | Lol. Me too, I guess.
The blood type diet posits that what you eat is critically linked to your type. The author has many adherents and many critics, but I've noticed a lot of recent interest in lectins, which he talks about. Interesting.
I wanted to know my blood type, so I enlisted for 4 years into the army, heck of a way to find out 4 years later...
It doesn't matter to a doctor or a lab technician what blood type a person TELLS them they are. The sad fact is that most times the patient/person has their blood type wrong - because they read the agglutination tests backwards or simply were told the wrong type by family. So - every person gets retyped to verify and establish their blood group BEFORE a medical situation such as going to surgery or getting set up for receiving a unit of blood. In reality it doesn't matter if a person knows their type or says they know because no responsible doctor will allow a transfusion based on what a patient tells them their blood type is. They could kill someone that way. My mother said for years that she was B+ and we discovered she was in fact O+ so that's the way it is.
@@SusanKay- Yes GSW or similar for on the spot/ no time to spare situations - ie when John Lennon was brought in - basically life saving and absolute emergencies but even then Oneg packed cells are administered - not whole blood. Techs can do a blood type rapidly from blood on the IV needle in emergencies and deliver the correct units pretty quickly - if on hand. Then later will of course verify compatibility with SOP crossmatches.
Mine (O+) was stamped on my military dog tags.
@@SusanKay- Of course. We release uncrossmatched O neg to female traumas and O pos to male traumas. In those cases, the risk of a transfusion reaction is less than the patients immediate risk of dying.
Gertie Shaw k
There have been all kinds of studies on blood types and other health issues that they don't want to publish. There is a lot more known than they want us to know.
I'm O+
I found out I was A neg when I had a positive child and needed shots to counteract the sensitivity.
Matte Matte it is! Only 1 out of 16 people has it.
Same and I am a- as well
A neg here too.
@@causticchameleon7861
me too
I'm A - also!
I am A- and very sickly. I once had to have synthetic blood given to me after bleeding out in surgery because there was not enough of my blood type at the time. I had to receive that synthetic blood for several days. Weird to think about.
This channel is awesome!
Wow
You can find your blood type by "joining the military." Yes ... clearly this is the best option.
😁
Love how these countrys with no public health care have to get creative to do some basic stuff
Did someone say it was the "best" way? Perhaps it is just how a bunch of people happened to find out while actually doing something else like serving their country in a selfless way?
Maybe now it's easy to detect your blood type in an instant if you need an emergency transfusion.
I had my blood type tested when I was a kid because my parents wanted to be sure I got the right blood type if I were to get into an accident or so.
I'm AB+, which is the best possible blood type to have, and worst possible blood type for the rest of the human race (unless you also have AB+)
The Truth can you elaborate?
I can receive any type of blood. So If I'm bleeding out, it doesn't matter what blood they give me I'll survive. So its awesome for me :)
However, my blood can only sustain other people with AB+, that's why I said Its the worst blood type for the rest of the human race. (I'm implying that O- is the best for humanity, since its the universal donor)
AB+ is the universal recipient and a useless donor
You can donate plasma to anyone. Not only can you receive any blood type, but you can donate your blood's plasma to anyone. FYI i'm AB+ too.
Donate plasma please! No AB or D antibodies to cause reactions. Also donate platelets for the same reason. The need for platelets is huge because they expire after 5 days, unlike blood and plasma which can be frozen and stored much longer.
Awesome video!
I'm glad you also addressed donating blood as a way to find out. You satisfy your curiosity and possibly save a life at the same time. Win/win!
I wish I knew my blood type but I have no good reason to see my doctor right now (especially since it can be weeks until I would see one and spend hours waiting... Canadian Healthcare :) )
Also as far as I'm aware there aren't any clinics around me that actually take blood and everytime there is a mobile blood donation clinic thingy, something has always happened that kept me from going like being sick, busy with school/work, or other things.
Perhaps when I have a couple bucks I'll try getting one of those kits and see what my blood type is just to satisfy my curiosity :)
(One last thing... neither of my parents remember my blood type and its not printed on birth certificates here)
Don't they ask you to know your blood type to get a drivers license? In my country to get your driver's license you need to take a hospital blood typing exam to prove your blood type before they issue the driver's license to you.
Oh btw, this stuff is SUPER IMPORTANT for pregnancy
and is the reason i think whites should only breed with other whites - and also why rhnegs are better off breeding with other rh-negs.
why do b's have a bad rep? I like my type. b +.
B blood people are easy to tantrum. And they are greedy and rude. They like to criticize everything.
In Portugal, at least when I was born, the hospital gave as small card with the blood type.
Iphones and other smart phones also have the emergency app that opens with the phone blocked, where people can and should fill with blood type and all sorts of information relating to allergies or meds they're on. :)
Great video once again 😎👍🏻
I still remember getting my key chain fob for hitting the one gallon donor mark. Enough A+ to fill a milk jug. I hope it helped someone. I had to stop due to medications I take for Lupus.