Belching is also known as hiccups, frequent belching while napping on the stomach needs to be considered firstly as a physiological reaction, and secondly as a result of pathological factors such as gastrointestinal neurosis, Helicobacter pylori infection, or duodenal bulbous ulcers and other digestive system diseases. 1. Physiological reaction: sleeping on your back is not good for breathing and usually leads to compression of the lungs. Sleeping on one’s back tends to compress the diaphragm, inducing gas reflux in the stomach and causing patients to experience symptoms such as dyspnea and frequent belching. 2. Gastrointestinal neurosis: patients with gastrointestinal neurosis, usually leads to weakness of the spleen and stomach, gastrointestinal circulation abnormalities, which will make the patient appear lying on the nap frequent belching phenomenon. 3. Helicobacter pylori infection: Helicobacter pylori infection will inhibit the smooth muscle of the gastrointestinal tract, which will have the phenomenon of frequent belching while napping. 4. duodenal bulb ulcer: duodenal bulb ulcer is closely related to H. pylori infection, the patient usually appear epigastric pain, and often accompanied by acid reflux, belching and other symptoms. The above symptoms should be timely to the hospital targeted examination to clarify the cause of targeted treatment.