When the proximal stomach’s ability to hold and store food decreases and does not open properly after eating, patients experience a feeling of fullness, often accompanied by belching, bloating, and even nausea and vomiting. The underlying cause is the slowing down of gastric emptying which causes a series of indigestion symptoms, which we call “functional dyspepsia”. When examining, commonly used examination items: 1, upper abdominal pain and distension, early fullness, belching, nausea, vomiting and other upper abdominal symptoms for more than three months; 2, endoscopic examination does not find ulcers, tumors and other organic lesions; 3, laboratory ultrasound, X-ray and other tests to exclude hepatobiliary and pancreatic, intestinal organic lesions; 4, no diabetic connective tissue disease, mental illness, etc.; 5, no history of abdominal surgery; 6, tracking 2-5 years 2 times The above gastroscopic review did not reveal any new organic lesions. Early satiety, bloating and belching are common symptoms of functional dyspepsia, which can occur alone or as a group of off, with or without abdominal pain, early satiety refers to the feeling of fullness but soon after eating, resulting in a significant reduction in food intake. Epigastric distension mostly occurs after meals, or is persistent after eating aggravated. Early satiety and epigastric distension are resident with belching.