Most of the abdominal flatulence, hidden pain and diarrhea are caused by acute gastroenteritis, mostly due to disorders of intestinal flora caused by eating unclean food in summer and autumn, followed by abdominal pain, abdominal distension, accompanied by diarrhea and even watery stools. If there is a clear history of eating unclean food, abdominal pain, bloating with diarrhea symptoms, the diagnosis of acute gastroenteritis is clear, then after anti-infection and other symptomatic treatment, the symptoms will be significantly relieved or cured in two to three days. Other rare diseases that cause abdominal pain, bloating and even diarrhea, including incomplete intestinal obstruction caused by intestinal tumors or polyps, usually require further colonoscopy to clarify the diagnosis and, if necessary, surgical treatment to obtain a cure.