Nasal septum surgery, with different diseases and different surgical purposes, will be different, such as septal deviation of the septum submucosal correction, septal submucosal resection, etc.; treatment of septal perforation of the septum septum perforation repair and so on. It is recommended to go to the ear, nose and throat department of the hospital for consultation, and the doctor will make the treatment plan after examination. 1. Deviated nasal septum (1) Submucosal correction of nasal septum: firstly, anesthesia is applied, then incision is made, mucocartilage and mucoperiosteum on the same side are separated, cartilage is cut, mucoperiosteum on the opposite side is separated, the cartilage of deviated septum and the vertical plate of deviated sieve bone and plica bone are removed, and finally, the incision is sutured. (2) Submucosal resection of nasal septum: first anesthesia, then incision, separation of mucoperiosteum and mucocartilaginous membrane of the same side, incision of cartilage, separation of mucoperiosteum and mucocartilaginous membrane of the opposite side, resection of septal cartilage and deviated sieve vertical plate and plough bone, and finally suture closure. 2. Nasal septum perforation Nasal septum perforation repair: its surgical methods include tension-reducing suture method, tension-reducing suture implantation method, inferior turbinate mucosa flap repair method, free middle turbinate mucoperiosteum sheet repair method, silicone rubber sheet insertion method and so on. Once suspected of nasal septum disease, it is recommended to go to the ENT department of the hospital as soon as possible, and the clinician will determine the treatment plan according to the condition after perfect examination.