Bulging changes in the esophagus are generally more benign, and a definitive diagnosis depends on pathologic examination. Esophageal elevated changes can be seen in esophageal ulcers, esophageal smooth muscle tumors, esophageal polyps, esophageal cancer and other diseases. 1. Malignant diseases usually take a longer time to develop and are mostly developed from benign diseases. If elevated changes in the esophagus are found during health checkups, they are mostly benign. There are also some malignant diseases with insignificant early symptoms, which have entered the middle and late stages when they are found. 2. Malignant diseases are the end result of various benign diseases, so the proportion of benign diseases is higher than that of malignant diseases. For example, esophageal cancer is the end result of various esophageal diseases, such as esophageal ulcer, Barrett’s esophagus, and esophageal polyp. It is recommended to consult a doctor to determine the nature of the elevated esophageal changes in conjunction with esophagoscopy and pathologic examination.