Deviated nasal septum occurs in young individuals during growth of the facial bones. This results in persistant blockage of the nose, mostly one sided. This in turn may result into blocking of the opening of the sinuses with recurrent sinusitis causing headaches and infection.  

Almost everybody has a deviation in the nasal septum. However, it requires treatment if it results into symptoms mentioned above. Surgery is the treatment of choice. Surgery is advised typically after completion of growth spurts. Surgery is essentially without external or mouth incisions. Septoplasty may require correction of the blocked nasal sinuses with endoscopic sinus surgery.