First of all, it is recommended to review the gastroscope to make sure whether the stenosis is caused by anastomotic tumor recurrence or anastomotic scar contracture, the stenosis caused by anastomotic tumor recurrence can be resected surgically or put into the gastric tube and then radiotherapy, and the stenosis caused by anastomotic scar contracture can be dilated by the anastomosis. 1. Post-cardia surgery stenosis can be seen in anastomotic tumor recurrence-induced stenosis, generally there are two treatment methods, if the patient’s general condition is OK, the original anastomosis and recurrent tumor can be resected and re-anastomosed, and the anastomotic recurrent tumor can be put into the gastric tube and then radiotherapy can be performed. 2. Stenosis after cardia surgery is commonly caused by anastomotic scar contracture, and anastomotic dilatation can be given under endoscopy. Post cardia surgery stenosis, it is recommended to go to the hospital for further consultation and treatment.