Generally speaking, breastfeeding can last for one to two years. After giving birth, breastfeeding can begin within an hour, and if there are no special circumstances, exclusive breastfeeding should be adhered to, preferably for six months; after that, complementary foods can be added appropriately, and then breastfeeding can continue for about one to two years. Breastmilk can provide the nutrition needed for the growth and development of infants, and can also improve the immunity of infants and increase the affection between mothers and young children. At the same time, for postpartum mothers, breastfeeding can also promote the repair of the uterus and delay the onset of menstruation as well as ovulation. Under normal circumstances, breastmilk may not reach the standard of supply after the fetus is six months old. In order to avoid insufficient nutrients for infants, complementary foods can be added appropriately to help the child take in more nutrients. The specific situation is different from person to person, if there is an abnormal performance, it is recommended to consult a doctor in time and treat the symptoms.