When a newborn baby is bloated, the abdomen should look fuller, and when the bloating is obvious, the skin of the abdomen may be taut, and when the hand is used to gently pat the abdomen, an empty sound can be heard, while the baby’s stomach is harder, and it is more difficult to press, and it may also cause the baby to cry. Because the baby’s gastric smooth muscle development is not yet complete, after filling with liquid food, it is easy to make the stomach expand, peristaltic ability is poor, thus forming abdominal distension, infants and young children’s digestive function is not well developed, intestinal peristalsis is not coordinated, incomplete digestion of food, easy to produce flatulence. Specific manifestations are as follows: 1. The affected child eats milk poorly, spits up milk severely, has a hard stomach, farts more, and cries more than once, especially at night when the crying is more serious. 2. The child grunts and squirms before defecation, and the symptoms are relieved after farting and defecation. 3. When intestinal flatulence induces severe colic, which can occur within a fixed period of time, the baby cries more than once, and no way can relieve the pain, which can be relieved by airplane hugging in severe cases, and the symptoms are self-relieved in about 15 to 20 minutes. All of the above are symptoms of flatulence, the emergence of this situation needs to be given to the child timely relief, otherwise it seriously affects the diet and sleep.