Turbinate Hypertrophy

Overview

The turbinates are small, curled, shelf-like structures along the side walls inside each nostril. Covered in a moist lining and rich in blood vessels, they warm, humidify, and filter the air you breathe. There are usually three on each side, and the lowest pair, the inferior turbinates, are most often involved in nasal blockage.

Turbinate hypertrophy means these structures have become enlarged or swollen, narrowing the nasal passages and making it harder for air to flow through. The result is persistent nasal congestion that does not fully clear, often worse on one side or at night. It is a common, usually non-serious cause of a blocked nose, but it can significantly affect breathing, sleep, and quality of life.

Symptoms

The hallmark of turbinate hypertrophy is ongoing nasal obstruction. Symptoms may include:

• Chronic nasal stuffiness or a feeling that the nose is blocked
• Congestion that may switch from one side to the other
• Difficulty breathing through the nose, especially when lying down
• Mouth breathing, snoring, or disturbed sleep
• A reduced sense of smell
• Postnasal drip or a runny nose
• Recurrent feeling of needing decongestant sprays for relief

Symptoms often overlap with allergies and sinus problems, so the cause is not always obvious from symptoms alone.

Causes

Turbinates enlarge when their lining and blood vessels swell, usually because of ongoing inflammation or irritation:

• Allergies: Allergic rhinitis from dust, pollen, mold, or pets is one of the most common causes.
• Chronic inflammation: Long-standing rhinitis or sinusitis can keep the turbinates swollen.
• Irritants: Smoke, pollution, strong odors, and dry air.
• Structural issues: A deviated nasal septum can cause one side to enlarge to compensate.
• Medication-related swelling: Overuse of decongestant nasal sprays can cause rebound swelling.
• Hormonal changes: Pregnancy and certain hormonal conditions can increase nasal congestion.

Risk Factors

• Allergies or a family history of allergies
• Chronic or recurrent sinus problems
• A deviated nasal septum
• Frequent or long-term use of over-the-counter decongestant sprays
• Exposure to tobacco smoke, pollution, or workplace irritants
• Living in a dry climate or using forced-air heating

Diagnosis

An ear, nose, and throat (ENT) specialist or other clinician can usually diagnose turbinate hypertrophy by examining the nose:

• Nasal examination: Looking inside the nose with a light or speculum to see enlarged turbinates.
• Nasal endoscopy: A thin camera passed into the nose to view the turbinates and nearby structures in detail.
• Allergy testing: To identify triggers if allergic rhinitis is suspected.
• Imaging: A CT scan may be used when sinus disease or structural problems are also being considered.

Treatment

Treatment usually starts with simple measures and steps up only if needed:

• Treating the cause: Managing allergies with antihistamines and avoiding triggers.
• Nasal steroid sprays: These reduce inflammation and shrink swollen turbinates over time and are a mainstay of treatment.
• Saline rinses: Rinsing the nose with saltwater can ease congestion and clear irritants.
• Avoiding overuse of decongestant sprays: Limiting them to a few days prevents rebound swelling.
• Procedures: If medical treatment does not help, an ENT specialist can perform a minor procedure to reduce the size of the turbinates, such as radiofrequency reduction or partial removal, often improving airflow.

Procedures are typically considered only after non-surgical options have been tried.

Prevention

• Manage allergies and reduce exposure to known triggers
• Avoid tobacco smoke and minimize exposure to pollution and strong irritants
• Use saline sprays or rinses to keep nasal passages moist
• Avoid relying on over-the-counter decongestant sprays for more than a few days
• Use a humidifier in dry environments
• Treat sinus infections promptly

When to See a Doctor

See a doctor if nasal congestion lasts for weeks, does not respond to allergy treatment, or interferes with sleep and daily life. Also seek care if you have:

• Persistent blockage on one side of the nose
• Frequent nosebleeds along with congestion
• Loss of smell that does not improve
• Snoring or breathing pauses during sleep
• Facial pain or recurrent sinus infections

An evaluation can identify whether enlarged turbinates, allergies, or another problem is responsible and guide the right treatment.

Related Topics

Frequently Asked Questions

References

1. American Academy of Otolaryngology-Head and Neck Surgery. Nasal obstruction.
2. MedlinePlus, U.S. National Library of Medicine. Stuffy or runny nose.
3. Mayo Clinic. Nonallergic rhinitis.
4. American Academy of Allergy, Asthma & Immunology (AAAAI). Rhinitis.