Postprandial stomach pain may be related to food poisoning, peptic ulcer and chronic gastritis. 1. Food poisoning: Food poisoning is a frequent occurrence in daily life, and pain in the stomach and lower abdomen is often a symptom of food poisoning. Food poisoning can be treated by inducing vomiting and gastric lavage to remove the residual poison in the digestive tract. 2. Peptic ulcer: Patients with gastric ulcers may experience typical epigastric pain after eating, and the pain will be relieved after eating, which is a symptom of peptic ulcer. You should eat on time, don’t eat spicy and stimulating food, don’t eat food that is not well digested. Drug treatment is mainly to inhibit the secretion of gastric acid, common drugs are omeprazole, rabeprazole, ranitidine and so on, drugs need to be used under the guidance of the doctor. 3. Chronic gastritis: Chronic gastritis leads to stomach pain symptoms, treatment of gastritis will relieve the symptoms of abdominal pain. It is recommended that patients develop good habits and avoid eating spicy and stimulating food to stimulate the stomach. Postprandial stomach pain can also be seen in other causes, it is recommended that patients go to the hospital as soon as possible to do the relevant examination to clarify the cause of the targeted treatment.