Summary: What factors can cause birth defects in babies? What are the dangers of birth defects in babies? How to prevent birth defects? Can I still continue to be pregnant if I find that the fetus is defective? In this issue of expert opinions, Yin Aihua, director of the Medical Genetics Center of Guangdong Maternal and Child Health Hospital, is invited to explain the issue of fetal birth defects. What factors can cause birth defects in babies? What are the dangers of birth defects in babies? How to prevent birth defects? Pregnancy can continue even if the fetus is found to be defective