1.Breastfeeding is on-demand feeding, babies can eat when they are hungry, or mothers can feed when they feel their breasts are swollen. 2.When the baby feels satisfied after breastfeeding, no bloating, no vomiting, it means the baby is full. 3.Nursing for at least twenty minutes each time. For premature and infirm babies, nursing time should be half an hour or longer. 4.The baby sucks at least eight times a day and ensures that the amount of urine is at least six to eight times a day, which means that the amount of milk is sufficient. 5.The baby’s weight increases by more than 700 grams per month within six months and more than 600 grams per month above six months. This means that the baby’s milk is sufficient. 6.Breastfeeding is not necessary to add any food, including water and juice, etc. 7.The baby’s urine is yellow, which means the baby’s milk is not enough, so let the baby suckle more and eat more.