Medical Definition of Blood group, ABO

Blood group, ABO: The major human blood group system. The ABO type of a person depends on the presence or absence of two genes, A and B. These genes determine the configuration of the red blood cell surface. A person who has two A genes has red blood cells of type A. A person who has two B genes has red cells of type B. If the person has one A and one B gene, the red cells are type AB. If the person has neither the A nor the B gene, the red cells are type O. It is essential to match the ABO status of both donor and recipient in blood transfusions and organ transplants.

CONTINUE SCROLLING OR CLICK HERE FOR RELATED SLIDESHOW

SLIDESHOW

The 14 Most Common Causes of Fatigue See Slideshow

Health Solutions From Our Sponsors

Reviewed on 12/27/2018