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 ...

The average adult has between 1.2 and 1.5 gallons of blood in their body, accounting for roughly 10% of their weight. Despite it being such a large, and critical, part of human anatomy, many people ...

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. Blood types need to match, or the immune system will ...

More than 100 years ago, Dr. Karl Landsteiner discovered that not all red blood cells are alike. He found that, when different people's blood was mixed, it would often clump up and curdle, destroying ...

Adam Taylor is affiliated with the Anatomical Society. You are probably aware of the two main blood group systems: the AB system and the rhesus system. Under the AB system, there are four main blood ...

Rhesus (Rh) incompatibility is amongst the many complications couples face in marriage (Image: Shutterstock) Couples are often plagued by various problems in marriage including fertility and pregnancy ...