Viral diarrhea can be self-cured in some patients. Viral diarrhea is an acute gastrointestinal infectious disease, mostly caused by viral infections, and is most common in infants, immunocompromised and those with poor hygiene habits, and is mainly characterized by vomiting, diarrhea, fever, nausea, anorexia and other symptoms. Viral diarrhea can be self-cured in some patients, but the time of self-cure will be different for different types of virus-induced diarrhea. Rotavirus diarrhea usually lasts for about 1 week, while norovirus diarrhea usually lasts for about 2-3 days, and a few of them may last for a few weeks, and viral diarrhea can be cured after active treatment, and usually does not recur. It is recommended that patients go to the hospital in a timely manner, under the guidance of the doctor, according to the patient’s specific condition, targeted treatment, life attention to maintain a good state of mind, and actively cooperate with the doctor’s treatment.