The indications for deviated septum correction surgery mainly include: severe nasal congestion caused by deviated septum, which affects breathing; headache caused by deviated septum blocking nasal sinus drainage; deviated septum with allergy; and those who affect surgical operation and effect during endonasal sinus surgery. 1. Severe deviated nasal septum, when the deviated nasal septum is severe, it affects the breathing, and there is difficulty in breathing, etc., it is necessary to carry out the corrective surgery of deviated nasal septum. 2. Higher position of deviated nasal septum: When the deviated nasal septum is high and affects the drainage of maxillary sinus, frontal sinus, etc., it can compress the nerves and cause headache, so it needs to be corrected by deviated nasal septum surgery. 3. Deviated nasal septum with allergy: when allergic rhinitis is more serious, accompanied by deviated nasal septum, and conservative treatment is ineffective, deviated nasal septum can be corrected, and the allergic rhinitis can be improved after the operation. 4. Nasal endoscopic nasal sinus surgery affects surgical operation and effect: the septal deviation is corrected at the same time during the operation to open up the surgical cavity and improve the sinus drainage. If you have a deviated septum, you need to go to the hospital for consultation and standardized treatment under the guidance of professional doctors.