Rotavirus diarrhea is a disease that causes diarrhea due to infection with rotavirus, i.e. viral enteritis. Rotavirus diarrhea is a viral infection that causes diarrhea due to viral infection of the gastrointestinal tract and is most often associated with respiratory symptoms such as colds. A typical symptom of rotavirus diarrhea is recurrent diarrhea, the stool can be egg-flake soup-like or watery stool, the number of stools per day can reach dozens of times, serious cases can be accompanied by fever, nausea and vomiting and other manifestations. Rotavirus diarrhea is mainly a viral infection enteritis, treatment is mainly symptomatic treatment, mainly antiviral treatment, with the use of drugs to protect the gastric mucosa to prevent the deterioration of the condition. In addition, it is necessary to pay attention to prevent dehydration, because a large number of water-like discharge, the body lost a lot of water and electrolytes, resulting in the body electrolyte and acid-base balance disorders, need to drink more water, if necessary, the need for infusion of fluids to regulate. It is important to note that rotavirus infection can lead to lactose intolerance, which may affect the absorption of milk, and it is recommended to reduce milk consumption. Rotavirus diarrhea is a relatively serious viral infection, especially in infants and young children, and should be treated promptly once detected to prevent the condition from deteriorating.