Generally speaking, the child will appear around 1-3 months after birth to save belly, each child may have individual differences, some appear early, some appear late, some do not appear to save belly phenomenon, as long as the child does not have clinical discomfort symptoms are okay. Children appear to save belly because with the physical development of maturity, organ function gradually mature, especially the development of the digestive system gradually mature, the child’s digestion, absorption function is relatively perfect, the digestion of breast milk or infant formula and other food, absorption is more complete, less food residue, so the situation of prolonged bowel movements. Usually, the child may have a bowel movement only once in 1-3 days, but the soft stool is normal. The child does not have any clinical symptoms such as abdominal discomfort or crying during this period, so no special treatment is usually needed and it will disappear on its own after about 2-3 months.