The pain after meals can be caused by gastric ulcers, gallstones, pancreatitis and so on. 1. Gastric ulcer: Gastric ulcer belongs to a kind of peptic ulcer, and patients often have the symptom of “postprandial pain”, which is related to the damage of the gastric mucous membrane barrier of the patient, and the increase of gastric acid secretion after eating. 2. Gallstones: Gallstones can also lead to symptoms of postprandial pain, which is due to the gallbladder secretion of bile after the meal, the stone parts of the abdominal pain caused by embedded, this abdominal pain is easy to confuse with stomach pain. 3. Pancreatitis: Pancreatitis can occur if the patient overeats or drinks a lot of alcohol during meals. Pancreatitis can also cause the patient to experience postprandial stomach pain, which is also a case of postprandial abdominal pain rather than stomach pain. If symptoms of stomach pain after meal or abdominal pain after meal occur, it is recommended to consult a doctor in time to find out the cause and ask the doctor to deal with it.