What are the consequences of blood group incompatibility between husband and wife?

As we all know, a person's blood type is inherited by his parents. When the husband and wife have different blood types, it will certainly be safe if the blood type of the fetus is the same as that of the mother. If the blood type is the same as that of the father, the blood type of the fetus and the mother will be different. At this time, the mother may produce substances (antibodies) against fetal red blood cells, which enter the fetal blood through the placenta and destroy fetal red blood cells to produce hemolysis. It can be seen that different blood types of husband and wife may have adverse effects on the fetus.

Is it true that couples can't have children because of blood type incompatibility?

Experts dispel doubts: blood group incompatibility is common, but fetal hemolysis is rare.

According to Wang Hong and Yi Xiaojun's account, it is probably a habitual abortion caused by fetal hemolysis in the mother's womb, which is medically called neonatal hemolysis.

Blood group incompatibility between husband and wife can be divided into ABO blood group and Rh blood group. ABO blood group incompatibility means that after a woman with type O blood marries a male with type A, type B or type AB, the pregnant fetus can be divided into type A, type B and type O. If the fetus is type A or type B, it will give the mother rejection, hemolysis, abortion and stillbirth.

However, the average couple need not be too nervous, because even if the fetus inherits the father's blood type, the maternal and infant blood types are incompatible, and hemolysis of the fetus or newborn is rare. About 20-25% of them are ABO blood group incompatibility during pregnancy, but only 2-2.5% have fetal or neonatal hemolysis.