Written by:Fact check:

Overview

What Is a Deviated Septum?

The nasal septum is the wall of bone and cartilage that separates the left and right sides of your nose. With a deviated septum, this wall is shifted away from the center, so one nasal passage may be narrower than the other. Many people have a deviated septum without any symptoms. Others may have trouble breathing through the nose, repeated nose problems, or disturbed sleep.

Symptoms

Deviated Septum Symptoms

  • Blocked breathing on one side of the nose (one-sided nasal obstruction).
  • Difficulty breathing through the nose, especially during exercise or a cold.
  • Repeated nosebleeds (recurrent epistaxis).
  • Pressure or discomfort in the face (facial pressure).
  • Noisy breathing during sleep, including snoring.
  • Repeated sinus infections (recurrent sinusitis).

Causes

What Causes a Deviated Septum?

  • The septum may develop unevenly before birth, resulting in a deviation present from birth.
  • Uneven growth of the nose and face during childhood or adolescence can shift the septum.
  • An injury from sports, a fall, a car accident, or other trauma can move the septum out of position.

Nasal septum deviation may become more noticeable as the nose grows or after swelling and injury change the available space inside the nose. However, not every blocked nose is caused by a deviated septum; inflammation, allergies, and other nasal conditions can also restrict airflow.

Risk Factors

Risk Factors for a Deviated Septum

  • A family or developmental tendency may increase the chance of having a deviated nasal septum.
  • Childhood and adolescent growth can make an existing difference in septum shape more noticeable.
  • Contact sports increase the chance of an impact to the nose.
  • Activities with a risk of falls or collisions can lead to nasal trauma.
  • A previous nasal injury or nasal surgery may change the position or shape of the septum.

Complications

Deviated Septum Complications

  • Repeated sinus inflammation or infections (recurrent sinusitis) may occur when drainage and airflow are affected.
  • Persistent nasal obstruction can make breathing through the nose difficult.
  • Repeated nosebleeds may result when the nasal lining becomes dry or irritated.
  • Poor airflow may contribute to disturbed sleep or noisy breathing at night.
  • Ongoing symptoms can reduce comfort, energy, and overall quality of life.

These complications are more likely when nasal symptoms are persistent or severe. A deviated septum is not automatically dangerous, and many people do not need surgery unless symptoms interfere with breathing, sleep, or daily life.

Diagnosis

How Is a Deviated Septum Diagnosed?

A clinician will ask about nasal blockage, nosebleeds, sinus infections, sleep problems, and any previous nose injury. They will also examine the outside and inside of your nose, often using a light and a nasal speculum. The evaluation helps determine whether a deviated septum is contributing to your symptoms or whether another condition may be involved.

  • The clinician inspects the shape and alignment of the nose.
  • The nasal passages are examined for narrowing, swelling, crusting, or other problems.
  • Nasal endoscopy may be used when a closer view of the deeper nasal passages is needed.
  • Imaging is usually reserved for another suspected problem or for planning surgery.

Self-checks

A mirror cannot confirm the diagnosis

Looking in a mirror, closing one nostril, or pressing on the nose cannot reliably confirm a deviated septum. A self-check may suggest that airflow differs between the sides, but it should not replace an examination by a qualified clinician.

Treatment & Management

Deviated Septum Treatment and Management

First-line symptom management

  • Saline nasal rinses may help clear mucus and moisturize the nasal passages when used as directed.
  • Allergy treatment can reduce swelling when allergies are contributing to congestion.
  • A clinician may recommend prescribed nasal medicines, such as a corticosteroid spray, to reduce inflammation.
  • Decongestants should not be used repeatedly or long term unless a clinician specifically advises it.

When surgery may be considered

Surgery may be considered when breathing problems, repeated nosebleeds, recurrent sinus problems, or poor sleep continue despite appropriate medical treatment. Septoplasty straightens or reshapes the septum to improve airflow; it does not treat every possible cause of nasal symptoms. Septorhinoplasty may be considered when both nasal function and the external shape of the nose need correction. Recovery, possible bleeding, infection, persistent symptoms, and other risks should be discussed with an ENT specialist so the decision reflects your goals and preferences.

Outlook and Prognosis

Outlook for a Deviated Septum

A mild or symptom-free deviation may need no treatment. If obstruction or related symptoms persist, they can often be managed with appropriate care, and surgery may improve airflow for selected patients. The best plan depends on how much the deviation affects breathing, sleep, sinus health, and daily life.

When Should You See a Doctor

When Should You See a Doctor?

  • Schedule a medical visit for persistent blockage on one side of the nose.
  • Ask for an evaluation if you have repeated nosebleeds.
  • Seek advice for recurrent sinus infections or ongoing facial pressure.
  • Discuss symptoms that repeatedly disrupt sleep or cause noisy nighttime breathing.
  • Arrange an assessment if nasal symptoms began after an injury.

Seek prompt care

After significant nasal trauma

Seek prompt medical assessment after significant nasal trauma if you have severe pain, heavy bleeding that does not stop, major swelling, or difficulty breathing. Immediate evaluation can help identify injuries that need treatment beyond a deviated septum assessment.

Branches

1 topic

Symptoms

1 topic