Stomach pain aggravated after eating may be caused by gastric ulcer, peptic perforation, gastrolithiasis and so on. 1. Gastric ulcer: stomach pain aggravated after eating is a typical symptom of gastric ulcer. After eating, food stimulates the site of gastric ulcer, and food can stimulate the stomach to secrete gastric acid, and gastric acid will also stimulate the site of the ulcer, leading to the symptom of postprandial stomach pain. Gastric ulcers can be treated with omeprazole to reduce acidity in the stomach and bismuth potassium citrate to protect the gastric mucosa and promote ulcer healing. If there is Helicobacter pylori infection, amoxicillin and clarithromycin should be added to eradicate Helicobacter pylori. 2. Gastrointestinal perforation: due to the damage that occurs in the digestive tract for various reasons and is caused by the formation of small holes in the wall of the tube, it can be treated by taking penicillin and other antibiotics to fight infection, using omeprazole antacid treatment, and surgery is needed for serious conditions. 3. Gastrolithiasis: due to the intake of certain plant components or hair and other substances, in the stomach condensation and the formation of foreign bodies, you can use domperidone to promote gastric peristalsis, through surgery and other lithotripsy treatment. Please pay attention to your diet, avoid spicy and stimulating foods, quit smoking and drinking, and exercise to enhance your immunity, and follow your doctor’s instructions.