Learn more about the different types of blood including which one is the rarest and the role of genetics in determining your blood type.
Here s a breakdown of the most rare and common blood types by ethnicity according to the american red cross.Īccording to the international society of blood transfusion if only 1 in 500 people are missing the same antigen as an individual their blood type is rare. In an emergency type o blood can be given because it is most likely to be accepted by all blood types. There are 4 main blood groups types of blood a b ab and o.īlood is a lot more complex than it looks. In general the rarest blood type is ab negative and the most common is o positive. There are four major blood groups determined by the presence or absence of two antigens a and b on the surface of red blood cells. In addition to the a and b antigens there is a protein called the rh factor which can be either present or absent creating the 8 most common blood types a a b b o o ab ab. Don t pay attention to the subject of what blood type is rare in all actuality all blood types are rare to a point. This list just lets the viewer see how rare their blood is compared to other people. Additionally rh positive blood types are much more common than rh negative blood types which is another reason why o blood is always needed and. Whats more important is who you can get blood from that makes you stand out. Pin On Preparedness Disaster Arc Only around 1 in every 6 million people have rhnull blood.Īll blood types and their rarity. A blood type also known as a blood group is a classification of blood based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells rbcs. Each group can be either rhd positive or rhd negative which means in total there are 8 blood groups.
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