Blood Grouping System

The blood grouping system classifies blood types based on the presence or absence of specific markers called antigens on the surface of red blood cells. The most common system is the ABO system, which groups blood into A, B, AB, or O, depending on these antigens. Another important system is the Rh factor, which determines if blood is positive or negative. Compatibility in blood transfusions depends on matching these groups to prevent harmful reactions. Proper blood typing ensures safe transfusions and is crucial in medical procedures to maintain health and safety.