1, cardia spasm: this disease is more common in women. The duration of the disease is long, the symptoms are sometimes mild and sometimes severe, often related to mental factors, the return flow is high when vomiting food, radiographic examination of the esophagus means a smooth funnel-shaped narrowing. Sometimes it can be dilated by applying antispasmodics. The esophageal mucosal pattern is regular, and the esophageal dilatation above the stenosis is more obvious. 2, esophageal diverticulum radiographic examination can be seen in the esophagus localized with an obvious outgrowth of the diverticulum, the neck and the bottom of the width of more consistent, or the neck is wider, smooth mucosa. 3, esophagitis, the main performance of the lower part of the esophagus burning, swallowing with mild pain. A few are accompanied by mucosal edema, spasm, etc. Difficulty in swallowing or pain behind the sternum may occur, most of which can disappear after treatment. Pulling the net to shed cells for examination, mostly due to pharyngeal allergy is not easy to succeed, and esophagoscopy should be performed if necessary. 4.Esophageal sarcoma, with smooth muscle, fibrous tissue and rhabdomyosarcoma source is common, the tumor is larger, clinical symptoms are similar to esophageal cancer, x-ray shows filling defect, lumen enlargement, upper and lower end of tumor is at acute angle with esophagus. The diagnosis needs to be confirmed by pathological biopsy. 5.Esophageal papilloma is a lobulated or branched tumor formed by the limited proliferation of esophageal mucosa, which is prominent in the lumen. The surface is covered with normal mucosa, occasionally it becomes esophageal squamous cell carcinoma, pathological diagnosis can be distinguished. 6.Plum kernel gas: It is common in women, often with obvious mental factors, and they feel a foreign body in the throat, which cannot be vomited or swallowed. There is no positive finding in radiological examination.