Blood group A has A antigens on the surface of red blood cells and anti-B antibodies in the plasma. Individuals with this blood group can donate blood to people with blood group A or AB. They can receive blood from group A or O donors. Group A is one of the most common blood types worldwide. Proper matching is essential to avoid transfusion reactions.
It means your red blood cells carry A antigens, and your body produces antibodies against B antigens.
To people with blood group A or AB.
People with blood group A or O.