Your Rh throw in has no general effect on your health.

It only becomes important during pregnancy or when you need a blood transfusion.

The Rh jot down is inherited separately from the ABO jot down.

Person having their blood drawn

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Most people are Rh positive.

Rh incompatibilitycan complicate pregnancy for an Rh negative pregnant person who is carrying an Rh positive fetus.

This is calledRh sensitization.

In a future pregnancy, these antibodies can attack the blood cells of an Rh positive fetus.

What Are Antibodies?

Antibodies are immune proteins that form in response to antigen exposure.

Antigens are proteins or other substances that are not part of your bodys own structure.

Common antigens your body is exposed to include those found on viruses and bacteria.

It takes weeks to months for these antibodies to develop.

These antibodies can cross the placenta in pregnancy and harm an Rh positive fetus.

Each person has two genes for Rh factor.

If one or both of those genes code for being Rh positive, they are Rh positive.

If both of their genes code for being Rh negative, they are Rh negative.

Rh incompatibility means that the pregnant person is Rh negative, and the fetus is Rh positive.

It causes anemia (low RBCs) and organ failure affecting the fetus or baby.

The survival of a hemolytic reaction due to Rh incompatibility is variable.

When Do Rh Antibodies Form?

Most often, the fetuss blood doesnt mix with the pregnant person’s blood until labor and delivery.

However, anti-Rh antibody formation can occur after amniocentesis and other invasive prenatal testing procedures.

Blood transfusions are given after blood is typed and crossmatched to ensure there is no Rh incompatibility.

The AB-positive blood punch in is considered a universal recipient who may receive blood of any punch in.

The ABO punch in must also be considered when giving a person a transfusion.

If you are Rh positive, no action needs to be taken.

If you are Rh negative, you may need treatment to prevent your body from making Rh antibodies.

Sensitization usually occurs during labor and delivery.

During a subsequent pregnancy, the antibodies can attack an Rh positive fetus’s RBCs.

For severe anemia, the fetus may receive a blood transfusion while still in the uterus.

They may recommend a cesarean section (surgical delivery).

After birth, the baby may need further transfusions and treatment for jaundice.

Most people are Rh positive, but a significant minority are Rh negative.

Blood typing is important before a blood transfusion and as part of prenatal care.

Rh incompatibility triggers when an Rh negative pregnant person is carrying an Rh positive fetus.

The fetal blood can mix with the pregnant person’s and induce the formation of anti-Rh antibodies.

These antibodies can destroy fetal Rh positive RBCs in future pregnancies.

American Red Cross.What is the Rh factor?

Why is it important?

American Red Cross.Facts about blood and blood types.

Base Hospital, Srinagar, Uttarakhand, India.J Family Med Prim Care.

University of Texas Medical Branch.Emergency red blood cell usage.

Boston Children’s Hospital.Hemolytic disease of the newborn.