Causes baby to eat on vomiting for many reasons, common factors are as follows: 1, indigestion: baby’s digestive system is not well developed, while more sensitive to food, eating faster or eating harder food or eating too much too mixed will increase the burden on the digestive tract, will also be easy to stimulate the anorexia and cause vomiting symptoms. Can be given to eat fewer meals, try to eat softer and lighter food can ease the symptoms, if still not better can eat some probiotics or digestive drugs. 2, if continuous vomiting and basically can not eat or accompanied by fever, diarrhea and other symptoms are considered acute gastroenteritis, can be caused by bacterial, viral infections, can also be the accompanying symptoms of respiratory infections, central nervous system infection caused by cranial hypertension will also appear vomiting phenomenon. It is necessary to give anti-infection treatment according to the pathogen, and temporary fasting is needed when vomiting is serious, while giving rehydration and symptomatic treatment. 3, acute abdomen: intestinal obstruction, intussusception is a common acute abdomen in pediatrics, both common features: no farting, no defecation, vomiting immediately after eating, there is obvious abdominal distension. There may be jam-like stools when there is intussusception. Prompt abdominal ultrasound or abdominal plain film is needed to make a clear diagnosis. If delayed, it may cause intestinal necrosis and requires prompt consultation with pediatric surgery. The cause of vomiting symptoms when eating needs to be identified before the child’s symptoms can be relieved.