What is a cc blood group?

The "Cc" blood group refers to the presence of two specific antigens, C and c, on the surface of red blood cells, which are part of the Rh blood group system. This system is important for blood transfusions and organ transplants, as compatibility between donor and recipient blood types is crucial to prevent immune reactions. Individuals can be Cc positive or negative depending on the presence or absence of these antigens. The distinction between C and c is significant in transfusion medicine and can influence the choice of blood donors.