Newborns with distended tummies may be a normal physiological phenomenon, or it may be caused by congenital megacolon, or it may be caused by intussusception, which is caused by different reasons and different treatment methods. 1. Physiological factors: because the newborn’s abdominal muscles are not yet well developed, so the newborn may appear to be bloated bulging symptoms, after eating and drinking milk bloating tends to be more pronounced, this is a normal phenomenon, do not have to worry too much. 2. Congenital megacolon: Congenital megacolon can cause newborns to have a distended stomach, and newborns may also have delayed expulsion of meconium and difficulty in defecation. It is necessary to consult the doctor in time, can be given to help defecation, in order to alleviate the symptoms, if necessary, surgical treatment. 3. Intussusception: Intussusception can also cause newborns to have a bloated stomach, newborns can also appear abdominal mass, abdominal pain, vomiting and other symptoms, the condition continues to aggravate can also lead to intestinal obstruction. It is necessary to seek medical treatment in time to take air enema for treatment, if necessary, surgical treatment. Excluding physiological factors, if the newborn’s stomach bloating symptoms continue to be unrelieved, it is recommended to consult a doctor in time to identify the cause and ask the doctor to deal with it. The above medications should be used in accordance with medical advice.