There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is important for safe blood transfusions and organ transplants. Type ...

DEAR DR. ROACH: I am a 58-year-old female in reasonably good health. When I was young, I donated blood several times and would have continued to do so, had I not become ineligible due to living in ...

There are several types of blood donations: whole blood, Power Red, platelet and plasma donations, according to the American Red Cross. As a result, there are different processes for donating blood.

Dear Dr. Roach: I am a 58-year-old female in reasonably good health. When I was young, I donated blood several times and would have continued to do so, had I not become ineligible due to living in ...