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-). There …

A complete blood type would describe each of the 48 blood groups, and an individual's blood type is one of many possible combinations of blood-group antigens. [3]

Nov 29, 2024 · So, theoretically, there are as many blood types as there are combinations of surface antigens on the red blood cell. As of 2024, the International Society of Blood Transfusion recognizes …

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.

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.

Dec 7, 2025 · There are eight primary blood types determined by the ABO system and the Rh factor, which dictate the antigens present on red blood cells. These are crucial in the case of blood …

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 plasma. Type …

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 are made …

Every person needs a healthy supply of blood. But, not every person’s blood is exactly the same. Human blood falls into four different blood groups: A, B, AB and O. Your blood also has what is …

Dec 20, 2025 · What Are the Different Blood Types? There are four major blood type groups: A, B, AB, and O.