A RhoGAM shot is a simple way to prevent complications with your Rh positive baby if you're pregnant and have Rh negative blood. We'll tell you what it does and what to expect.

Induced abortion during the first trimester did not increase risk for Rh sensitization, which suggests that Rh testing and treatment in pregnancy is unnecessary before 12 weeks gestation ...

If a woman with Rh-negative blood bears a baby fathered by an Rh-positive man, there is a grave risk that she will become sensitized to the Rh factor in her baby's blood and begin to produce ...

The problem only arises when your baby is RH-positive, and you are RH-negative. It is called RH incompatibility, and it can easily cause complications that will affect you and your baby.

Hematology: Vaccinating the Rh-Negative 2 minute read TIME June 21, 1968 12:00 AM GMT-4 ...