Blood transfusions are a cornerstone of modern medicine, saving lives during surgeries and emergencies. But for people with extremely rare blood types, finding a compatible donor can be a matter of ...

Only one in every six million people have the Rh null blood type. Now researchers are trying to grow it in the laboratory in the hope it could save lives. Blood transfusions have transformed modern ...

Medically reviewed by David Hampton, MD Key Takeaways O- blood is the universal donor type because it can be used for anyone.AB+ blood can receive any type of blood, making it the universal recipient.

The type of blood you have circulating around your body is classified based on the presence or absence of specific markers on the surface of your red blood cells. These markers, known as antigens, ...