Does a deviated nasal septum require surgery?

Jan 23, 2021 Source: Cainiu Health
Dr. Liu Chunqing
Introduction
Does septal deviation require surgery? Most people have some degree of nasal septal deviation, and the majority experience no significant symptoms—this is termed “physiological deviation” and does not require surgical intervention. Surgery is indicated only when the deviation causes marked unilateral nasal obstruction, recurrent epistaxis (nosebleeds) from one side, nasal-origin headache, or even unilateral olfactory dysfunction.

The nasal septum is the structure that separates the two nasal cavities. Its surface is covered by mucosa, beneath which lie the cartilaginous and bony components of the septum. Most cases of nasal septal deviation are congenital—present at birth—and persist throughout nasal and paranasal sinus development. A smaller proportion results from acquired trauma to the nasal cavity or nose.

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Does Nasal Septal Deviation Require Surgery?

Most individuals have some degree of nasal septal deviation, yet many remain asymptomatic—a condition termed “physiological deviation”—and do not require surgical intervention. Surgery is indicated only when deviation causes significant unilateral nasal obstruction, recurrent epistaxis (nosebleeds) on one side, nasal-origin headache, or even unilateral olfactory impairment. Currently, endoscopic septoplasty is the preferred surgical approach, typically involving localized correction—i.e., addressing only the deviated segment. In cases where deviation results from trauma, restoration of septal anatomy must be accompanied by correction of associated external nasal fractures or deformities. Therefore, the decision to proceed with surgery must be individualized and cannot be generalized.

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Knowledge Extension: Symptoms of Nasal Septal Deviation

1. Nasal Obstruction

Nasal obstruction is the most common symptom of nasal septal deviation. It is often persistent and unrelated to seasonal or environmental factors; however, symptoms may worsen during upper respiratory infections or allergic episodes.

2. Epistaxis (Nosebleeds)

Epistaxis is another frequent manifestation, commonly occurring on the concave side of the deviation or at the site of a prominent ridge (spur). This area is particularly vulnerable due to high mucosal tension, thin mucosal coverage, and rich vascular supply—making it prone to bleeding during nasal dryness, forceful nose-blowing, or sneezing.

3. Sinusitis Induction

When the deviated septum occupies a high position and obstructs the ostia (openings) of the sinuses, impaired sinus drainage may lead to chronic sinusitis. Prolonged nasal obstruction also predisposes patients to upper respiratory tract infections and may contribute to snoring during sleep.

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The above provides an overview of whether nasal septal deviation requires surgical intervention. We hope this information is helpful to you.