Enlarged Nasal Turbinates
The nasal turbinates are paired bony and mucosal structures that project from the lateral walls of the nasal cavity on each side. The inferior turbinates — the largest and lowest pair — play an important role in warming, filtering, and humidifying inspired air as it passes through the nose. When the inferior turbinates are persistently enlarged, they can significantly reduce the cross-sectional area of the nasal airway, contributing to nasal obstruction, mouth breathing, disrupted sleep, and in some cases snoring. Turbinate surgery aims to reduce this obstruction while preserving the important physiological functions of the turbinate tissue.
Turbinate surgery is most commonly performed as part of a septoplasty (correction of a deviated septum) or a rhinoplasty, though it may occasionally be performed in isolation where turbinate enlargement is the primary or sole cause of nasal obstruction. The appropriate surgical approach depends on the degree of enlargement, the likely underlying cause, and individual patient anatomy.
Why Do Turbinates Enlarge?
The inferior turbinates are covered in a highly vascular mucous membrane that can swell and shrink in response to a range of factors. The most common causes of persistent inferior turbinate enlargement include:
chronic mucosal inflammation driven by allergy causes persistent turbinate swelling that does not fully resolve between exposures
turbinate swelling driven by environmental triggers (temperature change, humidity, irritants) without an identifiable allergic cause
when the septum is deviated to one side, the inferior turbinate on the opposite side often undergoes compensatory enlargement to fill the wider airway; correcting the septal deviation without addressing the hypertrophied turbinate may leave the patient with persistent obstruction on that side
persistent mucosal inflammation from sinus disease can contribute to turbinate swelling
overuse of decongestant nasal sprays causes rebound swelling of the turbinate mucosa
Non-Surgical Management First
Before turbinate surgery is considered, non-surgical management should be trialled. Nasal corticosteroid sprays (such as fluticasone or mometasone) are the primary medical treatment for turbinate hypertrophy from allergic or non-allergic rhinitis, and can achieve meaningful reduction in turbinate size with consistent use. Allergen avoidance, saline nasal irrigation, and antihistamines may also be helpful. Surgery is appropriate where medical management has failed or is not suitable, or where the hypertrophy has a structural component (bony enlargement) that will not respond to topical treatment.
Surgical Techniques for Turbinate Reduction
A range of surgical approaches have been used for turbinate reduction over the years, with varying degrees of effectiveness and different risk profiles. Understanding the options helps patients ask informed questions at consultation.
These office-based techniques use radiofrequency energy to cause controlled submucosal fibrosis and shrinkage of the turbinate soft tissue. They can be performed under local anaesthetic in a clinic setting and are offered by some ENT surgeons for mild turbinate hypertrophy. Dr Roth does not perform in-office turbinate procedures. His preference is for turbinoplasty under general anaesthesia, which allows more precise and thorough tissue reduction and is appropriate for the degree of hypertrophy he typically sees at consultation.
The submucous resection technique — a form of turbinoplasty — involves a small incision at the anterior end of the inferior turbinate, careful elevation of the mucosa away from the underlying bone on one side, removal of the hypertrophied bone and submucosal tissue that is encroaching on the airway, and replacement of the mucosal flap to cover the reduced turbinate. This approach reduces the turbinate volume and the degree of airway obstruction while preserving the overlying mucosa and its physiological functions.
Dr Roth’s preferred approach for significant turbinate hypertrophy — particularly where a bony component is present — is submucous resection, as described by Professor Peter Wormald of Adelaide. This technique has been used widely by otolaryngologists for a number of years and preserves the important functions of the turbinate while creating a more patent airway. Surgery is performed endoscopically under general anaesthesia in hospital.
What to Expect After Turbinate Surgery
Turbinate surgery is typically performed endoscopically (through the nostrils) under general anaesthesia, with no external incisions or facial bruising. It is commonly combined with septoplasty or rhinoplasty where indicated.
Risks of Turbinate Surgery
the most common complication. Usually self-limiting but occasionally requires packing or further intervention
uncommon; managed with antibiotics
resolves with regular saline irrigation
turbinate enlargement can recur, particularly where the underlying cause (allergy, chronic rhinitis) is not controlled
in some patients the degree of improvement in nasal breathing is modest or not as expected
Frequently Asked Questions
Common questions about enlarged nasal turbinates and turbinate reduction surgery answered by Dr Jason Roth, Specialist Otolaryngologist, Sydney.
The inferior turbinates are bony structures covered in highly vascular mucosa that line the inside of the nose. They warm, humidify, and filter incoming air and are essential to normal nasal function. They also cycle in size throughout the day in a process called the nasal cycle — alternately congesting on each side every few hours.
Turbinates enlarge — beyond the normal cycle — in response to allergy, chronic inflammation, irritants such as cigarette smoke, or as compensatory hypertrophy on the wider side of a deviated septum. Persistent turbinate hypertrophy causes significant nasal obstruction that does not respond adequately to medical treatment alone.
No — turbinate reduction (turbinoplasty) reduces the volume of the turbinate while preserving its mucosal lining and function. The goal is to reduce the obstruction while keeping the turbinate’s role in warming and humidifying air.
Dr Roth performs all turbinate surgery under general anaesthesia at an accredited private hospital. He does not offer in-office or clinic-based turbinate procedures. General anaesthesia allows precise, thorough turbinate reduction without discomfort or time pressure, and is appropriate for the majority of patients requiring turbinoplasty. Patients seeking in-office radiofrequency turbinate reduction should discuss this option with their GP or a practice that offers this service.
Turbinate reduction as an isolated clinic procedure under local anaesthetic typically requires one to two days off work. Turbinate reduction under general anaesthesia as a day surgery procedure typically requires five to seven days off work, similar to septoplasty — the recovery is dominated by post-operative nasal congestion from swelling rather than pain.
Yes — nasal steroid sprays are the first-line treatment for turbinate hypertrophy, particularly when allergy is a contributing factor. Used consistently for at least eight to twelve weeks, they can significantly reduce turbinate size and improve nasal breathing without surgery. Saline irrigation and antihistamines may also help where allergy is driving the hypertrophy.
Surgery is appropriate when a full trial of appropriate medical therapy has not produced sufficient improvement, or where the hypertrophy is structural rather than inflammatory in nature.
Specialist Otolaryngologist & Head and Neck Surgeon
Specialist registration — Otorhinolaryngology, Head & Neck Surgery
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