The results will tell you whether you have A, B, AB, or O blood and whether your Rh factor is positive or negative. Apart from your healthcare provider ordering a standard ABO blood test, you could ...

Can O Positive Blood Group Marry Each Other ... Rh factor is an inherited protein that is either Rh negative (-) or Rh ...

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 ...