Rh-null is the rarest blood type in the world, found in fewer than 50 people. Lacking all Rh antigens, it is extremely ...

Knowing your blood type is more important than you think. Here's why and tips for finding yours before an emergency happens.

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 ...

This too can signal or cause health problems. A uric acid blood test is done to check the level of uric acid in your blood. Your doctor might also call it a serum uric acid test or serum urate (UA).

Carper recently underwent surgery for Stage 2 throat cancer. He exhibited no symptoms. The Galleri blood test, developed by GRAIL, allowed him to attack the cancer sooner than he would have been ...