Irritable bowel syndrome is a functional gastrointestinal disease caused by gastrointestinal dysfunction, which is often triggered by drinking, smoking, cold, eating cold and irritating food, emotional changes and other triggering factors, manifested as abdominal pain, bloating, indigestion, changes in the number of stools, changes in stool properties and other gastrointestinal symptoms. Stool routine plus occult blood, blood biochemical examination, tumor markers, barium meal fluoroscopy, gastroscopy, electrocardiogram, abdominal CT and other related examinations are not significantly abnormal. The main treatment is to avoid the triggering factors, and then to carry out comprehensive treatment such as regulating intestinal flora and intestinal dysfunction.