by EBSCO Medical Review Board
(Deviated Septum)


A deviated nasal septum is a problem with the alignment of the wall that separates the left and right nostrils. This may make it hard for air to flow equally through each nostril.

Deviated Septum
Copyright © 2002 Nucleus Communications, Inc. All rights reserved.


A deviated septum may be present at birth. It may also be caused by an injury.

Risk Factors

Playing contact sports raises the risk of this problem. Examples are karate or football.


Some people may not have symptoms. Other people may have:

  • Problems breathing through one or both nostrils
  • Nosebleeds
  • Sinus infections
  • Noisy breathing during sleep
  • Mouth breathing during sleep


You will be asked about your symptoms and health history. A physical exam will be done. It will focus on the nose. This is enough to make the diagnosis.


People who do not have symptoms may not need to be treated. Others may need surgery. This is called a septoplasty . The goal of surgery is to ease breathing by centering the septum between the two nostrils.

Rhinoplasty may also be done to reshape the nose at the same time. Together the two surgeries are called septorhinoplasty.


Wearing protective headgear when playing contact sports may lower the risk of trauma.


American Academy of Otolaryngology—Head and Neck Surgery 

American Society of Plastic Surgeons 


Canadian Society of Otolaryngology—Head and Neck Surgery 

Canadian Society of Plastic Surgeons 


Deviated septum. American Academy of Otolaryngology—Head and Neck Surgery website. Available at: Accessed August 13, 2020.

Greenstone M, Hack M. Obstructive sleep apnoea. BMJ. 2014 Jun 17;348:g3745.

Obstructive sleep apnea (OSA) in adults. EBSCO DynaMed website. Available at: . Accessed August 13, 2020.

Septal deviation and perforation. Merck Manual Professional Version website. Available at:,-nose,-and-throat-disorders/nose-and-paranasal-sinus-disorders/septal-deviation-and-perforation. Accessed August 13, 2020.

Revision Information

  • Reviewer: EBSCO Medical Review Board James P. Cornell, MD
  • Review Date: 03/2020
  • Update Date: 08/13/2020