A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body," according to American Red Cross.

Most people don’t spare a thought for their blood type unless they’re in need of a transfusion — but could yours hold secrets to your health? And is one better than the others? The short answer: No, ...

Your blood type might seem like a minor detail in your medical history, but it carries significant implications for your health and medical care. From emergency transfusions to pregnancy planning, ...

People with blood type A may be at higher risk of developing autoimmune liver disease, resulting in potentially life-threatening damage, a study has found. In contrast, those with blood type B are ...