Deviated nasal septum is generally not too severe. Overall, its harm to health is not significant. Whether a deviated nasal septum is serious depends on individual differences, and one should primarily examine the specific condition inside the nasal cavity. If the degree of deviation is not severe and there are no clinical manifestations, it generally does not require specific treatment, mainly regular reviews to observe any changes. However, if the deviation is quite pronounced and accompanied by clinical symptoms such as headache, dizziness, nasal congestion, or nosebleeds, it may be necessary to consider surgical correction. Currently, the main approach is minimally invasive surgery using an endoscope, and the overall results are quite definitive.