The chance of cancerous development of reflux esophagitis is very low, with clinical statistics reaching less than 1%. Reflux esophagitis refers to the reflux of stomach contents, including gastric acid, pepsin and bile, into the esophagus, thus causing irritation of the mucous membrane, which often occurs due to a decrease in gastric motility or relaxation of the lower esophageal sphincter. Reflux esophagitis may induce atypical hyperplasia due to prolonged stimulation of the mucosa of the esophagus by gastric acid or bile secretion, and Barrett’s esophagitis may occur, at which time the chances of cancer may be significantly higher. For this type of condition, it is recommended that gastroscopy be done every 1~2 years to determine the growth of the esophageal mucosa. For patients with reflux esophagitis, it is recommended that they consult the gastroenterology department of a regular hospital for regular review.