Rotavirus is the most common cause of diarrhea in infants, and enteritis caused by this virus is prevalent in the fall and winter months, which is often referred to as fall and winter diarrhea. The age of onset is predominantly in infants and children between six months and two years. The stool characteristics are characterized by a marked increase in the number of stools and stool water, a yellow watery or egg-flower-like stool with or without a small amount of mucus, and stools without a fishy odor. Laboratory tests occasionally show a small amount of white blood cells in the stool, and a positive rotavirus antigen can confirm the diagnosis. Rotavirus enteritis is a self-limiting disease, and the diarrhea can gradually decrease after a few days of onset, with a natural course of approximately 3-8 days, with a few cases longer.