Vomiting and diarrhea usually do not heal on their own. There are many causes of vomiting and diarrhea, such as acute gastroenteritis, food poisoning, infectious diseases and so on. 1. Acute gastroenteritis or food poisoning, intestinal mucosal inflammation, abdominal pain, vomiting, diarrhea, some will be accompanied by fever, severe vomiting, etc., can be complicated by gastric hemorrhage, cardia tear, etc., generally will not be self-healing. 2. Some infectious diseases, such as cholera, clinical manifestations of diarrhea, vomiting, acute diarrheal infectious diseases caused by Vibrio cholerae, the condition is more serious, it is difficult to cure. Vomiting and diarrhea serious, but also cause metabolic disorders such as electrolytes, serious electrolyte disorders will lead to acid-base balance disorder, coma, cardiovascular and cerebral vascular accidents, serious cases will also appear infectious shock. Clinically, the general use of gastric protection, anti-inflammatory, antidiarrheal, supplemental fluids, correct electrolyte acid-base disorders and other treatments. Patients with vomiting and diarrhea are advised to seek timely hospital treatment, do not avoid medical treatment.