Rotavirus enteritis is an acute gastrointestinal disease caused by rotavirus infection, with a high incidence in autumn and winter, and is common in infants and children. The main clinical manifestations are acute fever, vomiting and diarrhea. The stools are often dilute watery stools or egg-flake soup-like stools, ranging from five or six times a day to more than ten times a day. To summarize: fever for one day, vomiting for one day, and diarrhea for eight days. In terms of examination, you can check the stool routine and rotavirus, with dehydration, you need to check the blood gas and liver and kidney function electrolytes. There is no special medicine for treatment, mainly oral montelukast to protect the gastrointestinal mucosa, microecological preparations to regulate intestinal flora, if it is watery stool can be taken orally to reduce intestinal secretion of anti-cardioid granules, the key is to prevent dehydration. The beginning of the disease can be oral rehydration salts, generally pull a drink next time, for dehydration heavy need hospitalization.