In China, 90% of esophageal cancers are squamous cell carcinomas and only a few are adenocarcinomas, which are mainly from the columnar epithelium of the ectopic gastric mucosa of the esophagus. There are few undifferentiated carcinomas, and undifferentiated carcinomas are very malignant. Regardless of the pathological type of esophageal cancer, patients are advised to take active treatment, such as surgery or chemotherapy, radiotherapy or combination therapy, etc. For details, we need to consult a specialist.