There are several reasons why babies vomit when they eat: First, because the baby has acute gastroenteritis, improper feeding leads to indigestion when the child will have obvious bloating, nausea, once eating, the child will vomit. Need to relieve the symptoms of abdominal distension, oral medication to help gastrointestinal digestion, after the child’s vomiting symptoms can improve. Second, when the baby has surgical diseases such as acute appendicitis or intestinal obstruction and other symptoms, the baby will eat and vomit, the principle is the need for fasting, under the guidance of the surgeon for treatment. Third, older babies are affected by neurological factors, such as emotional tension or boredom with food, will also appear to eat and vomit performance.