Many Americans don't know their blood type, but that knowledge can actually tip you off about your risk for certain medical ...

A parasitic infection transmitted to humans by cats affects billions of people and can alter their behavior. New research ...

While we're all more familiar with the ABO blood group system and the rhesus factor (that's the plus or minus part), humans actually have many different blood group systems based on the wide ...

The insulin sensitivity factor tells you how many points, in milligrams per deciliters (mg/dL), your blood sugar will drop for each unit of insulin that you take. The insulin sensitivity factor is ...

Learn more about a Coombs test and how it is used as part of standard prenatal screening in the U.S. to detect HDFN.

A traumatic birth experience can leave women feeling helpless, overwhelmed and angry, but healing is possible.

Besides the typical ABO and Rhesus blood groups, scientists have identified 36 other blood group systems, each with unique characteristics. In total, there are more than 600 different antigens ...

A blood clot is a gel-like mass of blood that can form as a natural part of wound healing. But blood clots that occur within arteries or veins can be dangerous and even life-threatening if they block ...

Period blood color can change from bright red to dark red, pink, or brown at different points during menstruation, though it's not typically an indicator of your overall health. Color can change with ...