Neonatal flatulence generally comes mainly from gas swallowed and gas produced in the digestive tract. 2 years of age or older, like adults, there is no gas in the small intestine except in the stomach and colon, while the normal small intestine of newborns should be inflated, and the absence of gas accumulation is mostly pathological, especially when the whole abdomen swells after a full stomach, often above the glabella, and when hungry, the abdomen is empty and deflated. When it is found that the newborn’s abdomen continues to swell without deflation and has tension, abdominal distension is considered. Parents should be careful not to feed their babies when they are very hungry or crying. After each feeding, put the baby’s head up against the adult’s shoulder and gently pat the baby’s back so that the baby can expel the air it has sucked in. You can give your baby a clockwise abdominal massage, which helps your baby’s bowel movement and promotes exhaustion. If the flatulence is not relieved by massage and the baby cries significantly, you can take oral simethicone oil emulsion. If there are no other abnormalities, most flatulence can be relieved by symptomatic treatment. However, if the baby’s flatulence is obvious, the stomach is very large and hard, and accompanied by vomiting, affecting the appetite, parents should take the baby to the hospital to avoid missing the time of treatment.