Medically reviewed by Amelia MacIntyre, DO 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 ...

A blood group is defined as the entire blood group system that is made up of red blood cell (RBC) antigens. Taken together, the specificity of RBC antigens is controlled by a series of either allelic ...

People with certain blood types are more likely to have blood clots or bleeding conditions, kidney stones, or pregnancy-induced hypertension, suggests a study published today in eLife. The study ...

That seemingly arbitrary letter you rarely think about could be silently influencing your health in surprising ways. Your blood type, determined before birth and unchanged throughout life, extends far ...

Blood transfusions save lives. In the US alone, people receive around 10 million units each year. But blood banks are always short in supply—especially when it comes to the “universal donor” type O.

Knowing their blood type can help people better understand their health and be more informed about potential treatments. A person can find out their blood type with a blood test or other methods. The ...

Close up photo of female scientist holding a laboratory pipette and a blood sample tube for covid-19 in laboratory. She is wearing a protective suit, laboratory glasses, surgical mask and surgical ...

In 1901, biologist Karl Landsteiner made a landmark discovery: Human blood contains different types of groups. This finding led to a Nobel Prize and the eventual discovery of the four specific blood ...

Close up photo of female scientist holding a laboratory pipette and a blood sample tube for covid-19 in laboratory. She is wearing a protective suit, laboratory glasses, surgical mask and surgical ...