Lying down on the stomach bloating difficult to consider is functional dyspepsia, chronic gastritis, gastric ulcer and so on. 1. Functional dyspepsia: This is related to the functional disorders of the stomach, which will lead to slow peristalsis, mainly manifested in easy to be full and bloated after meals, pain in the upper abdomen, etc., especially after eating some not easy to digest food, lying down will be more bloated. 2. Chronic gastritis: chronic gastritis is caused by a variety of causes of chronic inflammation of the gastric mucosa, most of the relationship with Helicobacter pylori infection, due to inflammation stimulation is prone to dyspepsia, lying down, gastrointestinal peristalsis will be even slower, resulting in more pronounced flatulence. 3. Gastric ulcer: gastric ulcer is a variety of causes of ulcers occurring in the mucous membrane or deeper layers of the stomach lining, which can affect the normal digestive function, appearing postprandial bloating, the symptoms will be more pronounced after lying down, usually accompanied by stomach pain and other symptoms. Lying down on the stomach bloating uncomfortable should go to the hospital for a detailed examination, for the cause of the symptomatic treatment, it is recommended to eat small meals, easy to digest diet.