Concha Bullosa: The Hidden Cause of Nasal Blockage

Learn about concha bullosa, an air pocket inside the nasal turbinate that can cause chronic nasal obstruction and pressure headaches.

By Neeta Kohli-Dang, MDReviewed by Invalid Date2 min read

Takeaways

Concha bullosa is an air pocket inside a nasal structure that can block airflow.
Symptoms often feel like allergies or sinus trouble and can last for years.
People may notice one side never opens, with pressure or frequent headaches.
A CT scan and nasal exam are key to finding the real cause.
Not everyone needs treatment, and mild cases may improve with medicine.
Surgery is an option when symptoms persist and can greatly improve breathing.

Last Tuesday, a patient sat across from me with tears in her eyes. "Doctor, I've seen three specialists and no one can tell me why I can't breathe through my nose." She had tried different medications for years, yet the blockage kept coming back.

I pulled up her CT scan. After about thirty seconds, I pointed to a small air pocket inside one of the turbinates. "This," I said, "is called concha bullosa, and it's been hiding in plain sight."

What Is Concha Bullosa?

Turbinates are curved structures inside your nose. They help with hydration, lubrication, arranging airflow, filtration, smell, and thermoregulation.

A concha bullosa is pneumatization of a turbinate. That means there is an air cell inside the turbinate. Many people hear "air pocket" and assume it must be an infection. Sometimes it is just a normal variation that sits quietly for years.

The "Balloon Effect"

Imagine a turbinate that has a small hollow space inside it. If that space gets larger, the turbinate can become bulky, almost like a ballooned area within the nasal passage. When that happens, it can narrow the airflow channel.

Patients often ask, "Was I born with this?" The exact cause is not fully known. Some literature describes several hypotheses, including sinus pneumatization expanding into the turbinate during the intrauterine period.

Common Symptoms

In a systematic review of inferior concha bullosa cases:

Nasal obstruction was present in all patients (100%)
Followed by headache (77%)
Post-nasal drip (53%)

One big pattern I listen for is whether symptoms are unilateral or bilateral. Some patients can point to one side and say, "This side never opens."