Among the causes of neonatal jaundice, ABO hemolysis, breast milk jaundice, and intrauterine infection are all related to the pregnant woman. 1, ABO hemolysis: mainly occurs in the mother O blood type, while the fetus A or B blood type, if the mother is AB blood type or fetus O blood type will not occur ABO hemolysis. Now the first child, because the mother before the first pregnancy has been stimulated by natural A or B substances, such as plant parasites maternal body already exists in the anti-A or anti-B antibodies, so the mother and infant blood type does not match, easy to produce hemolysis, red blood cell destruction more, resulting in hemolytic jaundice. 2, breastfeeding jaundice: breastfeeding in the baby 4-7 days after birth jaundice, 2-4 weeks to reach the peak, after the discontinuation of breast milk, jaundice significantly relieved, bilirubin drop greater than 50%, if breastfeeding again, jaundice does not necessarily appear again, even if the appearance will not reach the original degree. Infectious jaundice: Infected children are infected by intrauterine bacteria and viruses in the mother, which can lead to hemolysis and also inhibit liver enzyme activity, resulting in a decrease in hepatocyte binding bilirubin capacity and an increase in unconjugated bilirubinemia. Therefore, all three types of jaundice are related to the mother, and attention must be paid to the timely prevention and treatment of infectious diseases during pregnancy, and the child must be fed on demand after birth.