Early satiety” refers to the feeling of being “full” when the amount of food eaten is less than the normal amount of food eaten, which indicates a problem with the stomach, or to be more specific, a problem with “gastric power”! When the proximal stomach’s ability to hold and store food decreases and does not open properly after eating, the patient will experience a feeling of fullness, usually accompanied by belching, bloating, and even nausea and vomiting. The underlying cause is a series of indigestion symptoms caused by slowed gastric emptying, which we call “functional dyspepsia”. Slowed gastric emptying can lead to prolonged retention of food in the stomach and increased secretion of gastric acid, which in turn causes damage to the mucosa and, over time, can easily lead to gastritis. And gastritis will further contribute to the slowdown of gastric power, resulting in a vicious circle. Causes: 1, gastrointestinal motility disorders such as acute and chronic gastritis and gastric prolapse due to the weakening of gastric power and cause abdominal distension. 2, increased gas generation in the gastrointestinal tract such as poor digestion caused by improper diet, intestinal flora imbalance, abnormal fermentation caused by gastrointestinal flatulence. 3, diseases such as hepatobiliary and pancreatic diseases such as hepatobiliary and pancreatic diseases can also cause abdominal distension due to digestive dysfunction, such as acute and chronic hepatitis, liver cirrhosis, cholecystitis, etc. 4.Functional abdominal distension There may be symptoms of indigestion such as abdominal distension, early satiety, abdominal discomfort, belching and nausea, but there is no evidence of organic lesions on examination. It has a high incidence and is mostly associated with gastrointestinal motility disorders, colonic dysfunction, Helicobacter pylori infection, habitual constipation, or mental factors.