The hidden pain in the stomach when you are full is considered to be caused by improper diet, indigestion, gastrointestinal diseases and other factors. 1. Improper diet: Eating cold and irritating food may irritate the mucous membrane of the gastrointestinal tract, triggering intestinal spasms and leading to stomach pain. 2. indigestion: consuming too much food may aggravate the digestive burden of the gastrointestinal tract, and a large amount of food is retained in the intestines, leading to increased pressure in the intestines and triggering indigestion, resulting in a vague pain in the stomach. 3. Gastrointestinal diseases: gastrointestinal diseases such as chronic gastritis, cholecystitis, enteritis, etc. People suffering from gastrointestinal diseases, the digestive function of the stomach and intestines may be relatively weak, and a large amount of food enters the gastrointestinal tract, which may cause stomach pain. Patients should pay attention to diet, try not to eat too much cold and irritating food, and reasonably control the amount of diet. If the phenomenon of hidden pain in the stomach after eating a full stomach is not effectively relieved for a longer period of time, you can go to the hospital for examination, and according to the doctor’s advice for appropriate treatment.