The main reason for bloating is the problem of the motor function of the gastrointestinal tract, which is caused by two main aspects: 1. liver diseases; 2. diseases of the gastrointestinal tract itself. Liver diseases: Some patients with abnormal liver function, especially some patients with slow hepatitis B, fatty liver, and drug-related liver injury, show elevated transaminases, which can manifest as nausea, vomiting, abdominal distension, poor appetite and loss of appetite. Patients with gastritis, peptic ulcer, esophagitis may also experience bloating, which is related to excessive secretion of gastric acid and stimulation of the mucous membrane of the gastrointestinal tract, so such patients must reduce the intake of acidic food, eat a light diet and pay attention to the symptoms and signs of the gastrointestinal tract.