Esophageal smooth muscle tumor is usually caused by the proliferation of mesenchymal cells in the esophagus. It is mainly the smooth muscle proliferation of mesenchymal cells, which appears as a benign tumor, causing esophageal smooth muscle tumor. Esophageal smooth muscle tumors are generally benign, hyperplastic tumors with a low Ki67 index on immunohistochemical staining, less than 5%. Its multiplication time, that is, the growth process is relatively slow, the patient is not very clear can feel the esophageal dysphagia, or esophageal symptoms are becoming more and more obvious, such as esophageal cancer progressive dysphagia, more and more obvious, esophageal smooth muscle tumor eating is generally okay, mainly through the gastroscopy, found that there is such a sub-mucosal bulging mass in order to confirm the diagnosis.