Diarrhea with watery stools is considered to be caused by acute gastroenteritis. The acute inflammatory lesions in the stomach and large intestine lead to functional disorders in the digestive organs, resulting in the normal absorption and circulation of water and nutrients, which causes watery stools. The superficial mucous membrane of the gastrointestinal system is stimulated by inflammatory diseases, resulting in congestive swelling and increased peristalsis, so most patients with acute gastroenteritis will have diarrhea, abdominal pain, abdominal distension and other adverse symptoms. The actual type of cause needs to be further examined in a regular hospital in order to confirm the cause and symptomatic treatment.