Newborns after eating milk around the belly button should be considered a normal phenomenon, lactose intolerance, indigestion and other causes, if it is a normal phenomenon, do not need special treatment, if it is lactose intolerance or indigestion caused by, you may need to replace the milk powder or general treatment. 1. Normal phenomenon: may be due to the newborn baby to eat more milk, the stomach may appear hard phenomenon after eating, you can gently massage the abdomen, do not need special treatment. 2. Lactose intolerance: may be due to lactose intolerance and milk protein allergy caused by symptoms, if necessary, need to replace lactose-free milk powder or hydrolyzed milk powder. 3. indigestion: may be due to the newborn baby eating too much milk caused by the appropriate abdominal massage and hot compresses, and avoid letting the newborn baby one-time too much milk. Newborns after eating milk around the navel hard, if accompanied by symptoms of discomfort, should take the newborn to the hospital in time.