The reasons for infant bloating are: 1. Because the gastrointestinal function of infants is not well developed, such as improper feeding, cold, lactose intolerance, sucking in too much air when eating milk can easily cause abdominal distension, which can be manifested as a very bulging belly from the appearance, the mother can gently tap the baby’s belly with her hand to feel the sound of empty drums, touch the belly is sometimes soft and sometimes hard, and the belly is always grunting, exhausting If the abdomen is too bulging with frequent vomiting, the vomit is not only undigested milk, the baby is poor in spirit, refuses milk, the abdomen is hard, bright and red, small blood vessels can be seen (varicose veins in the abdominal wall), and even lumps can be felt and tarry stools appear. You should go to the hospital as soon as possible.