Nasal septum deviation is a relatively common otolaryngological condition, primarily caused by congenital factors related to individual development. It can also be caused by trauma or fractures of the nasal septum. In terms of treatment, it's first important to assess the degree of deviation. If the deviation is minor and presents no significant clinical symptoms, often no special treatment is needed, and regular observation and check-ups suffice. However, if the deviation is notable and accompanied by symptoms such as nasal congestion, runny nose, headaches, and dizziness, surgery may be required. Currently, the main surgical approach is endoscopic septoplasty, a common minimally invasive procedure that generally provides definitive results. Post-surgery, regular check-ups are necessary to monitor recovery.