The Rh Factor is a protein that can be present on the surface of red blood cells. If you have this protein, you are considered Rh-positive, while those without it are Rh-negative. This factor is important in blood transfusions and pregnancy, as it can affect compatibility between a mother and her baby. When an Rh-negative mother carries an Rh-positive baby, her body might produce antibodies against the baby's blood cells. This can lead to a condition called hemolytic disease of the newborn, which can cause serious health issues. Therefore, knowing your Rh Factor is crucial for safe medical care.