There is no clear clinical regulation on how long it is appropriate to breastfeed, which needs to be judged according to the amount of mother’s milk and fetal feeding, generally can be the mother’s one breast to the baby’s breastfeeding time in the 7~15 minutes. The most important thing to remember is that the mother’s milk is not enough and the fetus is not enough. If the mother’s milk is enough, the mother can breastfeed her baby for 7 to 15 minutes and then change to the other side of the breast to breastfeed her baby. Since there is no clear regulation on how long a mother needs to breastfeed on one breast, the mother can adjust the feeding time of each breast according to her own situation. If there is sufficient milk in one breast, you can extend the breastfeeding time for that breast. For women who do not have enough milk, after both breasts have been suckled, it is necessary to follow the doctor’s advice to feed the baby with formula or add complementary food in time.