Rh factor: What is the Rh factor

What is the Rh factor , and why is it important? Learn about the rhesus antigen and why a person's rhesus status is important for transfusions and pregnancy. Rh factor must be tested for your first pregnancy, regardless of how that pregnancy ends. Why? Because if you are Rh negative, then your body may have already created the antibodies that will fight against any future Rh-positive pregnancy. A simple blood test can tell you your blood type and whether you are Rh positive or Rh negative. The Rh factor is an important protein found on the surface of red blood cells in many individuals. People who have this protein are considered Rh -positive. Learn the Rh incompatibility, its symptoms, causes and treatments in detail. Rh factor is a protein on red blood cells that determines blood compatibility and transfusion suitability. Learn how Rh factor is inherited, why it is important for pregnancy and blood donation, and how to get an Rh screening test.