The most common reasons for always having stomach pain are the following: 1. chronic gastritis, such as chronic superficial gastritis and chronic atrophic gastritis, clinically manifested as subxiphoid discomfort, often accompanied by abdominal distension and belching. 2. peptic ulcer, mainly referring to gastric ulcer and duodenal ulcer, clinically manifested as subxiphoid pain, often accompanied by heartburn, acid reflux, abdominal distension and belching. 3. cholecystitis, manifested as pain in the right upper abdomen The pain recurs after the patient eats fatty food.4. Appendicitis, which manifests as recurrent pain in the right lower abdomen, and there is pressure pain at the point of McDonald’s during physical examination.5. Functional gastrointestinal disease refers to the absence of obvious organic lesions of the gastrointestinal tract, and the patient has recurrent pain around the umbilicus, often accompanied by constipation and abdominal distension.6. If the patient has urinary stones, colorectal tumors and other diseases will also cause recurrent pain in the stomach. It is recommended that patients go to the hospital for a systematic examination to clarify the cause and then treat accordingly.