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Understanding different blood types: A, B, AB, and O
There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is ...
Q: I just found out from a home pregnancy test that I’m pregnant for the first time. I’m concerned about causing harm to the baby because my blood type is O negative and my husband is O positive. I’ll ...
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 Cross.
Add Yahoo as a preferred source to see more of our stories on Google. A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune ...
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