Belching without acid reflux may be related to diet, mental factors, and digestive system diseases. 1. Diet: Eating a lot of beans and other gas-producing foods can lead to accumulation of food in the stomach, and the digestion of the stomach can cause an increase in the gas in the stomach, resulting in belching, which may not be accompanied by acid reflux. 2. Mental factors: increased salivary secretion can be caused by mental stress, which can lead to belching as a result of swallowing large amounts of air during frequent salivation. 3. Digestive system diseases: such as gastric ulcer, after eating food can appear obvious pain, at the same time, abdominal distension, belching and other symptoms, may not be accompanied by acid reflux. It is recommended that belching without acid reflux go to the hospital in a timely manner to clarify the cause, and if treatment is needed, it should be standardized under the guidance of a doctor to avoid delaying the condition.