Vomiting until yellow water is not only the main consideration of digestive system diseases, such as acute gastritis due to unclean diet, food poisoning, the main performance is abdominal pain, nausea, vomiting performance. There are also patients with gastrointestinal flu, in addition to vomiting, mostly accompanied by abdominal pain, abdominal distension, chills and fever, nasal congestion and runny nose and other symptoms of khat. In addition, there is also pyloric obstruction, in addition to severe vomiting accompanied by abdominal watery sound, and epigastric pain and bloating, nausea and vomiting symptoms after eating water. There are also patients with occupational lesions of the pancreas, mostly accompanied by localized masses and blood sugar abnormalities, which can be diagnosed through abdominal ultrasound and CT examination. Regardless of the cause of persistent vomiting symptoms, first of all, timely rehydration should be given to avoid electrolyte disorders, and at the same time, fasting water should be given, first through parenteral nutrition to replenish energy.