Similarly, its absence characterizes the Rh-negative blood group. Of the 61 known blood group antigens, the negative/positive ...

If Neanderthal women mated with Homo sapiens or Denisovan men, there was a high risk of newborns having neonatal hemolytic ...

Medical emergencies strike without warning. Whether it's a car accident, severe allergic reaction, or unexpected surgery, ...

Human populations that left Africa evolved quickly whereas Neanderthals stayed the same, according to an analysis of blood ...

For example: There are also Rhesus (Rh) antigens, which determine if blood is "positive" or "negative." If you have Rh proteins on the surface of your red blood cells, you are Rh positive.

It's a bit simplistic, but you can think of the Rh factor as a protein that is either present (positive) or absent (negative) on red blood cells. Exact percentages vary with race, but most people ...

But if you don't have the protein, you're RH negative. You don't necessarily have to have the same blood type as your baby since the baby will inherit characteristics from both parents.