Since Barrett’s esophagus is a precancerous lesion, some patients will transform into esophageal cancer, while others will transform into normal esophagus, the exact timing of which is still inconclusive. Barrett’s esophagitis is a precancerous esophageal lesion, which often occurs due to prolonged reflux esophagitis, resulting in intestinal epithelial metaplasia in the mucosa at the junction of esophagus and stomach. The incidence of this disease is low in China, and most esophageal cancers in Western Europe and America are transformed from Barrett’s esophagus, while there are fewer cases of real transformation from Barrett’s esophagus to esophageal cancer in China.