Abdominal pain, diarrhea and flatulence may be related to gastrointestinal tract lesions, liver and gallbladder diseases, mental factors and other reasons. 1. Gastrointestinal tract lesions: such as chronic gastritis, ulcerative colitis and other causes can affect the digestive function of the gastrointestinal tract, resulting in indigestion, abdominal pain, bloating, diarrhea and other symptoms. 2. Liver and gallbladder diseases: such as chronic hepatitis, cholecystitis, etc. can affect the secretion of bile, so that digestion problems, can cause indigestion and other symptoms. 3. Mental factors: if long-term tension or anxiety can cause the phenomenon of slowing down of gastric peristalsis, which can lead to abdominal pain, bloating, diarrhea and other symptoms. It is recommended that people with abdominal pain, diarrhea and flatulence go to the hospital in a timely manner to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.