The specific causes of bloating, regurgitation and nausea are as follows: 1. Gastroscopy should be performed to understand whether there are organic diseases, such as chronic gastritis, gastric ulcer, acute gastritis, duodenal ulcer and gastroesophageal reflux disease, gastroesophageal diverticulum, cardia failure, gastric cancer and other diseases, and to give symptomatic treatment for different causes. 2. For women of childbearing age, it is necessary to know whether there is any early pregnancy reaction. 4. Gastrointestinal neurosis should be excluded. For different reasons to give the appropriate treatment, learn to reduce stress in daily life, avoid spicy, cold and other stimulating food intake, avoid overeating, to eat less and more, chew slowly.