The indications for deviated septum surgery include severe discomfort caused by a deviated septum, adjacent tissue diseases, and before and after certain surgeries. 1. Discomfort symptoms: Some patients may need to undergo deviated septum surgery when necessary because of severe deviation of the septum that affects breathing, causes nosebleeds or compensatory hypertrophy of the turbinate. 2. Triggering neighboring diseases: Some patients may suffer from sinus drainage due to high deviated nasal septum, which may further lead to sinusitis, or the deviated nasal septum may lead to compensatory hypertrophy of the inferior turbinate on one side, which may affect the function of the Eustachian tube and lead to otitis media, and so on, and then they need to undergo deviated nasal septum surgery. 3. Before and after certain surgeries: Some patients need to undergo deviated nasal septum surgery according to the actual situation before and after major surgeries, because deviated nasal septum blocks the best surgical field of view or because the nasal septum is deviated due to the compression of nasal cavity and sinus tumors. For deviated septum, it is recommended to visit a hospital and be evaluated by a specialist to determine if surgery is necessary.