Eating a little is due to indigestion, gastrointestinal dysfunction, pyloric obstruction and other factors, food in the stomach after entering the stomach need to secrete digestive juices, the food will be rotten after emptying. If the stomach secretes relatively little digestive juices, indigestion will occur, and the time to empty the food in the stomach will be relatively longer, so it will lead to the performance of early satiety after eating food. When there is gastrointestinal dysfunction, some people will show a lack of gastric power and relatively slow gastric peristalsis, so they are unable to mix and grind the food in the stomach. After a small amount of food is consumed, the stomach feels bloated because the food stagnates in the stomach. After digestion, food needs to be discharged into the duodenum through the pylorus. Once the pylorus is obstructed, food evacuation will be restricted, and all the food consumed daily will be stored in the stomach, which will be accompanied by a feeling of stomach distension, and the stomach will feel distended after eating some food slightly.