The following reasons are summarized: 1, people with gastritis have no appetite, after eating the stomach often have a feeling of fullness and support, and the vague pain after meals must be the ulcer surface of the digestive tract, food into the digestive tract to start digestion, and ulcer surface due to the lack of protective film, in the food digestion is pain. 2, some people with weak gastrointestinal function eat food that is not easy to digest, like fried food, spicy skewers, stimulating food. Like fried food, spicy skewers, spicy and stimulating food can also cause vague stomach pain. 3, people with cholecystitis and gallstones eat greasy food because of the severe lack of bile secretion, which can also cause vague stomach pain during food digestion. With the above symptoms, be sure to check and then treat the symptoms.