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During a pregnancy, Rh antibodies made in a woman's body can cross the placenta and attack fetal blood cells. This can cause a serious type of anemia in the fetus in which red blood cells are destroyed faster than the body can replace them.
10 Νοε 2022 · Rh incompatibility occurs when a person who’s Rh-negative becomes pregnant with a fetus with Rh-positive blood. With Rh incompatibility, your immune system reacts to this difference (known as incompatibility) and creates antibodies.
10 Ιουλ 2023 · It does not affect pregnancy if the pregnant person is Rh positive, regardless of the Rh type of the fetus. Blood from an Rh positive fetus can enter the bloodstream of the pregnant person and stimulate the production of anti-Rh antibodies.
29 Ιουλ 2022 · Having an Rh negative blood type is not an illness, and it usually does not affect your health. But it can affect pregnancy. Your pregnancy needs special care if you're Rh negative and your baby is Rh positive.
When an Rh-negative mother’s blood comes into contact with blood from her Rh-positive fetus, it causes the Rh-negative mother to make antibodies against the Rh factor. These antibodies attack the Rh factor as if it were a harmful substance. A person with Rh-negative blood who makes Rh antibodies is called “Rh sensitized.”
Rh incompatibility can harm a second (or later) pregnancy. If you have Rh antibodies from an earlier pregnancy, now your Rh-positive baby could have problems. Your Rh antibodies may destroy some of your baby's red blood cells and cause your baby to have: Anemia. Jaundice. Brain damage. Death before you deliver (miscarriage)
A baby may have the blood type and Rh factor of either parent, or a combination of both parents. Rh factors follow a common pattern of genetic inheritance. The Rh-positive gene is dominant (stronger) and even when paired with an Rh-negative gene, the positive gene takes over.
