The common causes of stomach pain immediately after meals are gastritis, gastric ulcer, but also does not exclude the possibility of gastrointestinal perforation, gastric stone disease, acute pancreatitis, gastric tumors, etc. Gastroscopy can be used to clarify the cause and the severity of the condition, and treat the cause according to the specific circumstances. 1, gastritis: acute gastritis, chronic erosive gastritis, bile reflux gastritis, etc. can be manifested as stomach pain after eating. It can be treated with gastric mucosal protective agents, acid suppressants or drugs that adjust the gastrointestinal motor function under the guidance of a doctor. 2. Gastric ulcer: the regularity of pain attacks is related to meals, accompanied by acid reflux, heartburn, burping, belching, nausea, vomiting and other symptoms, which can be relieved 1-2 hours after meals. It can be treated with medication drugs that inhibit acid secretion as prescribed by the doctor. If the ulcer is heavy and serious complications occur, surgery should be performed; 3. Gastrointestinal perforation: just after a full meal, if there is a sudden and severe pain in the upper abdomen, like a knife cut, the possibility of gastrointestinal perforation can be considered. It is usually caused by H. pylori infection, application of non-steroidal anti-inflammatory drugs, and certain diseases that lead to aggravation of peptic ulcer symptoms. At this time, the hospital should be consulted immediately for conservative medical treatment or surgical treatment; 4. Gastric stone disease: patients with a history of eating persimmons, hawthorn, and black dates will have symptoms of stomach discomfort, including repeated epigastric pain, vomiting, and black stools. After examination, drug therapy or endoscopic lithotripsy therapy can be performed under the guidance of a doctor, and if necessary, surgical treatment and other aspects of treatment; 5, acute pancreatitis: acute pancreatitis is induced after heavy drinking or overeating, there is severe epigastric pain, which will be considered as stomach pain, and can be accompanied by vomiting, bloating and other symptoms, and the symptoms are not relieved after vomiting, you need to seek medical attention immediately, and drug therapy can be performed after diagnosis, such as octreotide After diagnosis, medication such as oxytetracycline tablets, pethidine tablets and other drugs can be administered, and surgical total pancreatectomy and subtotal pancreatectomy are also feasible for treatment; 6, gastric tumor: stomach pain is caused by infiltration and compression symptoms of gastric cancer, which can also occur after meals, and medication and surgical treatment can be administered to relieve symptoms, such as drugs such as omeprazole, a proton pump inhibitor, pethidine, a sedative and analgesic, etc., and surgical treatment such as gastrectomy and radical resection of gastric cancer. In addition, radiotherapy and chemotherapy treatment can be performed according to the patient’s condition; 7. Other: If stomach pain occurs after eating a lot of greasy food or drinking alcohol, there is also the possibility of cholecystitis and biliary stones, etc., which require symptomatic treatment with omeprazole and lansoprazole for acid suppression and pain treatment with morphine and pethidine, in addition to the treatment of the primary disease, such as performing cholecystectomy, etc. In addition, patients with pyloric obstruction may also have such symptoms and need to abstain from drinking and, if necessary, undergo surgical treatment. The elderly also need to be aware of the possibility of inferior wall myocardial infarction.