The stomach pain after eating may be caused by improper diet and gastrointestinal diseases, such as gastritis, gastric ulcer, gastric polyp, acute pancreatitis, etc. If it cannot be relieved after adjusting the diet and taking oral medication, you should go to the gastroenterology department of the hospital in time to clarify the cause and treat the cause. 1. Improper diet: consuming moldy, smoked, pickled, nitrite-rich food, or consuming too rough, strong, spicy Food, or long-term heavy drinking can cause acute damage to the gastric mucosa, the symptoms of stomach pain after eating. The symptoms can be relieved by improving the diet, such as choosing light and easy-to-digest foods like millet porridge. If the symptoms are not relieved, oral treatment of drugs to protect the gastric mucosa, such as omeprazole, famotidine, rabeprazole and aluminum carbonate gel, aluminum thioglycollate suspension, etc.; 2. Gastrointestinal diseases: such as gastritis, gastric ulcer, gastric polyps, etc., due to damage to the mucosa of the stomach, after eating something, due to food and gastric acid stimulation, resulting in stomach pain. At this time, attention should be paid to a reasonable diet, avoid stimulating diet, and at the same time, oral medication to inhibit stomach acid and protect the gastric mucosa; 3, other diseases: such as acute pancreatitis, which can also occur after meals with sudden onset of persistent epigastric pain, accompanied by nausea and vomiting, and can be treated with general treatment such as fasting, gastrointestinal decompression, oxygen, nutritional support or surgical treatment to relieve symptoms.