Stomach pain after eating can be caused by many reasons, the most common diseases are the following three: 1, gastric ulcer, manifested as pain under the subxiphoid process after meals, accompanied by heartburn and acid reflux, it is recommended that patients improve gastroscopy. 2, chronic gastritis, including chronic superficial gastritis and chronic atrophic gastritis, manifested as hidden pain under the subxiphoid process after meals, accompanied by abdominal distension and belching, it is recommended to improve gastroscopy. 3, chronic Cholecystitis, manifesting as pain in the right upper abdomen or under the subxiphoid process after meals, can be vague pain or colic. The abdominal pain will increase after eating fatty food, often accompanied by clinical symptoms such as abdominal distension and nausea. Therefore, there are many causes of postprandial stomach pain. It is recommended that patients should seek timely medical treatment at the hospital, perform systematic examination and carry out corresponding treatment after clarifying the causes.