Congenital disorder: A congenital disorder is any condition present at birth that may be caused by genetic factors, prenatal exposure to harmful substances, or unknown reasons.
Teratogens: Teratogens are substances such as drugs, chemicals, infections, or radiation that can interfere with normal embryonic development and increase the risk of birth defects.
Fetal alcohol syndrome (FAS): FAS is a specific birth defect caused by maternal alcohol consumption during pregnancy. It can lead to physical, behavioral, and cognitive abnormalities in the baby.