Blood Types And Their Rarity

February 28, 2021

The rarest blood type is called rhnull. Only around 1 in every 6 million people have rhnull blood.

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Whats more important is who you can get blood from that makes you stand out.

Blood types and their rarity. Here s a breakdown of the most rare and common blood types by ethnicity according to the american red cross. In general the rarest blood type is ab negative and the most common is o positive. According 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.

Don t pay attention to the subject of what blood type is rare in all actuality all blood types are rare to a point. 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. Your blood group is determined by the genes you inherit from your parents.

Blood is a lot more complex than it looks. A blood type blood group is defined as the classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells rbcs. 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.

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. There are 8 common blood types as determined by presence or absence of certain antigens substances that can trigger an immune response if they are foreign to the. If only 1 in 1 000 people lack it the.

This list just lets the viewer see how rare their blood is compared to other people. Learn about other blood types and their compatibilities in this article. O can only receive from their own type or o.

There are 4 main blood groups types of blood a b ab and o. O blood is the most common blood type in the world and while it is not quite as universal as o blood o can be given to all rh positive types but not the rh negative types it is still the most used blood according to the american red cross. Each group can be either rhd positive or rhd negative which means in total there are 8 blood groups.

Learn more about the different types of blood including which one is the rarest and the role of genetics in determining your blood type.

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