Burping food reflux into the throat is generally considered to be caused by reflux esophagitis, gastritis, gastric ulcer, pancreatic dystrophy and other diseases. 1. Reflux esophagitis. Reflux esophagitis is a gastrointestinal disease caused by the reflux of gastric acid and other stomach contents into the esophagus due to the relaxation of the lower esophageal sphincter and the weakening of the defense barrier of the esophageal mucous membrane, etc. The patient may burp when gastric acid, food and other gastric contents enter the esophagus or even the oral cavity through the cardia, which may cause damage to the esophagus and laryngeal mucous membrane. 2. Gastritis and gastric ulcer. Gastritis and gastric ulcers may cause food reflux when too much food accumulates in the stomach due to excessive secretion of gastric acid and slow gastric peristalsis. 3. Pancreatic dystrophy. Pancreatic achalasia is a disorder of esophageal dynamics, in which the patient may have difficulty in swallowing, food reflux, and sternal pain, etc. Of course, this symptom may be caused by other factors. Of course, this symptom may also be caused by other factors, if the symptoms recur, the patient should go to the hospital to improve the relevant examination to find out the cause, and timely treatment of the cause of the symptoms.