Deviated nasal septum can be congenital or acquired. Congenital deviation is usually influenced by genetic factors, and the bone in the middle of the nose is not the same for everyone. If the patient’s nasal cavity is still ventilated, then no special treatment is needed. Acquired factors, such as a serious impact on the septum, can lead to a fracture of the nasal septum, which is not actively treated afterwards, and this can easily lead to a deviated nasal septum, resulting in nasal aeration. It is recommended that patients who want to confirm the diagnosis should go to the hospital to take a CT of the nose, and if they have symptoms after the diagnosis, then surgery can be considered to solve the problem. The main purpose of surgery is to correct the deviated septum and improve the patient’s nasal ventilation.