Is It Possible to Have Sinusitis Without Symptoms of a Cold?

We see this in our clinic regularly. A patient comes in after having an imaging study of the head done for a completely unrelated reason — a headache evaluation, a dental issue, something that had nothing to do with their sinuses. And right there on the scan, clear as day, is evidence of sinusitis. The patient had no idea. No cold. No facial pain. No congestion they were aware of. Nothing they would have called a sinus problem.

So how does that happen?

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A Viral Cold Is Just One of Many Triggers

The most common assumption patients make is that sinusitis starts with a cold — a viral upper respiratory infection that spreads into the sinuses. And that does happen. But a virus is just one of many upstream triggers that can drive sinus inflammation. It is not even close to the only one.

Allergy is one of the most common drivers of chronic sinusitis — and many patients with significant allergic sensitization have never been properly tested or treated. Environmental triggers are another: poor air quality, air pollution, dust, chemical irritants, and extremes of temperature all affect the nasal and sinus mucosa. In Arizona specifically, the desert environment creates one of the most aggressive allergen exposures in the country, with extended pollen seasons and a specific allergen profile that catches many patients off guard.

Laryngopharyngeal reflux — pepsin from the stomach reaching the posterior nasal cavity — is a driver that most patients have never heard of and most physicians outside of our specialty rarely consider. Immune dysregulation, where the body’s inflammatory response becomes dysregulated at the mucosal level, can sustain chronic sinus inflammation without any infectious trigger at all. And anatomical problems — a deviated septum, narrow drainage pathways, structural variants that impair normal sinus ventilation — can create the conditions for chronic mucosal inflammation that builds silently over months or years.

None of these require a cold to get started.

Why Some Patients Have No Symptoms

This is the part that surprises patients most. When I sit down with someone who has just been handed a CT scan showing sinusitis they knew nothing about, they almost always ask the same question: if my sinuses are inflamed, why don’t I feel it?

The answer is that they probably do feel it — they just do not recognize it as a sinus problem. The congestion they write off as normal. The post-nasal drainage they have learned to clear without thinking about it. The slight reduction in their sense of smell they attribute to getting older. The morning fatigue they blame on poor sleep. The mild facial pressure they dismiss as tension.

These patients have been living with their symptoms for so long that the symptoms have become their baseline. They have no reference point for what normal actually feels like. When I explain what the scan is showing them and what it means, I tell them something they almost never expect to hear: you probably have no idea how much better you could feel.

What This Means for Your Care

If you have been told incidentally that your sinuses show inflammation on imaging — or if you suspect that what you have been calling your normal is actually chronic sinus disease that has never been properly evaluated — a nasal endoscopy and a complete review of your history is the right next step.

The goal is to identify which upstream driver is active in your case. Treatment matched to the actual cause gets results. Treating the sinuses while the upstream driver continues unaddressed is why so many patients cycle through repeated courses of antibiotics or have sinus procedures with incomplete long-term relief. The sinuses are often the victim. The driver is upstream — and finding it changes everything.

Want to Understand More?

This post is part of the Understanding Your Symptoms series on the Airway & Sinus Wellness Review.

→ Why Antibiotics Keep Failing Your Sinus Infection

→ Can Sinusitis Cause Daily Headaches?

→ The Final Chapter: What the Field Still Cannot See — Posterior Sinonasal Syndrome

→ Airway & Sinus Wellness Review — Full Publication

This post is part of the Understanding Your Symptoms section of the Airway & Sinus Wellness Review.

About the Author

Dr. Franklyn R. Gergits, DO, MBA, FAOCO is an otolaryngologist and rhinologist with over 30 years of clinical experience treating sinus and airway disease. He is the founder of the Sinus & Allergy Wellness Center of North Scottsdale and performed the first balloon sinuplasty in Pennsylvania. He holds dual Entellus Centers of Excellence certifications and specializes in office-based nasal and sinus procedures under local anesthesia. Dr. Gergits is the originator of the Posterior Sinonasal Syndrome (PSS) hypothesis — a clinical framework identifying posterior nasal mucosal inflammation driven by pepsin and laryngopharyngeal reflux as an etiological precursor to chronic rhinosinusitis. His hypothesis manuscript is currently under peer review, with a preprint available at Preprints.org (DOI: https://doi.org/10.20944/preprints202603.0858.v1). ORCID: 0009-0000-4893-6332.

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This content is for educational purposes only and does not constitute medical advice. If you have been told you have sinusitis on imaging or suspect you may have undiagnosed sinus disease, consult with a qualified otolaryngologist for a complete evaluation.