Patient Question: Hello, Dr. Wang, I am 25 weeks pregnant and I have type O blood, will the child be prone to bo hemolysis in the future? Doctor’s reply: ABO blood group incompatibility leads to severe intrauterine hemolysis of the fetus, the possibility of abnormalities is very small, and there is no effective treatment during pregnancy, so there is no need to routinely check antibody titers, the current screening strategy is mainly to monitor the daily bilirubin changes in the newborn after birth, and then start treatment if there are abnormalities. In the rare cases where hemolysis occurs in the uterus, there will be some manifestations on the ultrasound that can indicate abnormalities. You can ask your loved one to look into it.