The spleen and stomach function of infants is not well developed, the secretion of digestive juices is not sufficient, the function of enzymes is not perfect, the mucous membrane in the stomach and intestines is tender, the digestive function is still weak, the tongue is easy to appear a layer of white moss, at this time, if not good at controlling the amount of diet, it is easy to cause indigestion, if there is no obvious vomiting or diarrhea, do not worry too much, from the diet can be adjusted. Treatment methods are as follows: 1, as far as possible breastfeeding, because human milk contains lipolytic enzymes, can help newborns digestion and absorption. 2.For babies weighing 3-3.5 kg at birth, during 1-2 months, it is appropriate to eat about 600-800 ml of milk every day, divided into 7 times a day, 100-200 ml each time, and eat milk on time and according to the schedule, not as soon as the child cries, so that the newborn’s intestines do not get a break, which can easily cause indigestion. 3, if the baby is not full, do not continue to increase the amount of milk, you can let the baby drink about 30 ml of plain water. 4.Do not use antibiotics or drugs to help digestion indiscriminately, and do not scrape the white moss on the tongue. 5.Pay attention to keeping the abdomen warm, especially in summer, do not be overly greedy for coolness and expose the belly outside. Newborns are prone to indigestion, but do not worry too much. It should be noted that if the baby cries seriously, or vomits, diarrhea, abnormal color of stool, then you need to consult a professional pediatrician, do not use drugs indiscriminately by yourself.