Poor liver function in pregnant women has an impact on the fetus, especially with abnormal clotting factors. Coagulation factors can represent the function of liver synthesis, and decreased coagulation factors are prone to complicate postpartum hemorrhage. In early pregnancy, cytomegalovirus infection can increase the occurrence of fetal malformations. In the middle and late stages of pregnancy, hepatitis viruses can lead to preterm labor, fetal distress syndrome and sepsis, and miscarriage, stillbirth, stillbirth, and neonatal mortality will increase. Hepatitis B and C viruses can be transmitted vertically, that is, through the mother to the baby, such as hepatomegaly, pregnant women, prone to pre-eclampsia, fetal functional retardation , pregnant women taking drugs, alcohol have an impact on the child.