Not all blood is alike. Learn about blood typing and the rarest and most common types of blood and how they can impact your blood donation.

[1] Blood types are inherited and represent contributions from both parents of an individual. As of June 2025, a total of 48 human blood group systems are recognized by the International …

Dec 7, 2025 · There are eight main blood types, defined by the ABO system and the Rh factor. Type O-negative blood is a universal donor, and AB positive blood is a universal recipient. …

Mar 14, 2023 · There are four main blood types: A, B, AB and O. Blood bank specialists determine your blood type based on whether you have antigen A or B on your red blood cells.

Feb 19, 2025 · While everyone’s blood contains the same basic parts, there are eight different blood types. The type you have depends on genes you inherit from your biological parents. …

Nov 18, 2025 · There are 4 major blood types: Type A red blood cells have A-type antigens. Type B has B antigens. Type AB has both A and B antigens. Type O has neither A nor B antigens. …

Feb 14, 2020 · There are eight major blood types: A+, A-, B+, B-, AB+, AB-, O+, and O-. But there are lots of variations within these eight that aren’t often mentioned! These eight blood types …

Understanding blood types is crucial for safe transfusions. There are 8 main blood types: Your blood type is determined by the presence or absence of certain antigens – substances that …

There are 4 main blood groups defined by the ABO system: Blood group O is the most common blood group. Almost half of the UK population (around 48%) has blood group O. Receiving …

Nov 28, 2023 · It categorizes blood into four main types: Type A: Has A antigens on the red cells and anti-B antibodies in the plasma. Type B: Has B antigens with anti-A antibodies in the …