Nasal Polyps: Symptoms, Causes & When Surgery Is the Best Option | Sinus & Snoring MD

You’ve tried the sprays, the rinses, and more than one round of antibiotics. But the congestion keeps building, the pressure won’t let up, and your sense of smell disappeared weeks ago. If nothing seems to work, nasal polyps may be the reason.

Nasal polyps are soft, noncancerous growths that form in the lining of the nasal passages or sinuses. They develop from chronic inflammation, and they affect up to 4% of the U.S. population. For many people, polyps are the hidden driver behind chronic sinusitis symptoms that refuse to respond to standard treatment.

The good news: polyps are treatable, and the right nasal polyps treatment plan can deliver lasting relief. This article covers how to recognize polyps, what causes them, when medication is enough, and when surgery becomes the better option.

What are nasal polyps?

Nasal polyps are painless, teardrop-shaped growths that develop from the mucous membrane lining of the nose or sinuses. They typically form where the sinuses open into the nasal cavity, and they range in size from barely visible to large enough to block airflow completely.

Polyps are not cancerous. They tend to grow in clusters, usually affecting both sides of the nose. They’re most commonly linked to chronic rhinosinusitis — sinus and nasal inflammation lasting 12 weeks or more. Left untreated, nasal polyps and chronic sinusitis together can make breathing, sleeping, and everyday functioning noticeably harder.

Nasal polyp symptoms: how to know if you have them

Small polyps may cause no symptoms at all. But as they grow or multiply, they create persistent problems that over-the-counter remedies can’t fix.

The most common nasal polyps symptoms include chronic nasal congestion that doesn’t improve with decongestants, reduced or complete loss of smell and sometimes taste, persistent postnasal drip, facial pressure or a dull headache, frequent sinus infections, snoring or mouth breathing at night, and a runny nose with clear or discolored drainage.

Since COVID-19, more people are paying attention to changes in their sense of smell. Nasal polyps are one of the most common causes of that kind of nasal polyps loss of smell, and it’s often the symptom that finally brings patients in for an evaluation.

When to see a doctor

Schedule an ENT evaluation if your symptoms have lasted more than 10 to 12 weeks, your sense of smell hasn’t returned after a cold, you’re getting three or more sinus infections per year, or you can’t breathe through your nose despite treatment. Many of these symptoms overlap with chronic sinusitis and allergies, and an ENT specialist can determine whether polyps are the underlying cause.

What causes nasal polyps?

The exact cause isn’t fully understood, but nasal polyps develop in response to chronic inflammation of the nasal and sinus lining. Several conditions raise your risk significantly.

Chronic sinusitis is the most common association. Prolonged sinus inflammation creates the environment where polyps take hold. Asthma is another major factor — patients with asthma develop nasal polyps at much higher rates. Allergic rhinitis contributes through ongoing allergic inflammation, and some patients have Samter’s Triad, a combination of asthma, nasal polyps, and aspirin or NSAID sensitivity. Family history and genetic predisposition also play a role, and patients with cystic fibrosis are more likely to develop polyps, particularly at a younger age.

Why polyps keep coming back

Here’s what most patients don’t hear upfront: removing polyps doesn’t remove the inflammation that caused them. Without ongoing management of the underlying triggers — allergies, asthma, chronic sinus disease — recurrence rates stay high. That’s why a comprehensive treatment plan matters more than polyp removal alone. Nasal polyps don’t just go away on their own, and they won’t stay away without addressing what causes nasal polyps in the first place.

Medical treatment: can you shrink nasal polyps without surgery?

For many patients, medication is the first step. And for mild cases, it may be enough.

Corticosteroid nasal sprays are the standard first-line treatment for nasal polyps. Prescription-strength options like fluticasone or mometasone reduce inflammation and can shrink small polyps over several weeks of consistent use. They’re more effective than over-the-counter versions, and your ENT may recommend a specific technique for applying them to maximize contact with the polyp tissue.

Oral corticosteroids, taken in short courses, can reduce polyp size more aggressively. They work well as a reset — bringing inflammation down enough to reassess whether surgery is needed — but side effects make them impractical for long-term use. Saline nasal irrigation supports both of these approaches by flushing inflammatory debris and improving how well topical medications reach the tissue.

Newer medical therapies also exist for select patients with severe or recurrent polyps, though surgical management remains the primary approach for most moderate-to-severe cases.

When symptoms persist or return after completing a medication course, when polyps are too large for sprays to reach, when your sense of smell doesn’t improve, or when sinus infections keep recurring despite treatment, it’s time to consider how to shrink nasal polyps through a more definitive approach.

Surgical treatment for nasal polyps

When nasal polyps are large, widespread, or unresponsive to medical therapy, nasal polyps surgery offers the most direct path to lasting relief. Modern techniques are minimally invasive, and recovery is far shorter than most patients expect.

Endoscopic sinus surgery (FESS)

Endoscopic sinus surgery is the gold standard for nasal polyps removal. A thin endoscope with a camera is inserted through the nostrils — no external incisions. The surgeon removes polyps, opens blocked sinus passages, and restores proper drainage. The procedure is performed under general or IV sedation depending on the extent of disease, and most patients return to normal activity within one to two weeks. For many, endoscopic sinus surgery nasal polyps treatment restores breathing and brings back a sense of smell that’s been absent for months or years.

In-office polypectomy

For smaller or more accessible polyps, removal can be done right in the office using local anesthesia with IV sedation. This means a shorter procedure, quicker recovery, and no trip to the hospital. At Sinus and Snoring MD, our in-office surgical suites allow Dr. Swerdlin and Dr. Plein to perform polypectomy with the same precision as an operating room, in a more convenient and comfortable environment.

What to expect after surgery

Recovery typically involves temporary nasal packing or splints, daily saline rinses to support healing, and follow-up appointments to monitor progress. Ongoing ENT nasal polyps treatment with corticosteroid sprays and allergy management helps prevent polyps from growing back.

Nasal polyps vs. other nasal conditions: how to tell the difference

Because nasal polyps share symptoms with several other conditions, getting the right diagnosis matters.

Chronic sinusitis without polyps causes congestion, facial pressure, and drainage — but polyps add loss of smell and visible growths on nasal endoscopy. Treatment differs, too, since polyps may require surgery when sinusitis alone often responds to medication.

A deviated septum causes one-sided blockage, while polyps typically affect both sides. One is a structural problem, the other is inflammatory. Some patients have both, and addressing both may be necessary for full relief.

Enlarged turbinates cause congestion but usually no smell loss. Turbinate reduction and polyp removal involve different surgical approaches, and an ENT evaluation with nasal endoscopy can quickly tell them apart.

A CT scan of the sinuses and in-office nasal endoscopy are the most reliable ways to confirm nasal polyps and rule out other causes. If you’ve been treating what you think is allergies or chronic sinusitis without improvement, polyps may be what’s actually going on.

Preventing nasal polyp recurrence after treatment

Nasal polyps have a recurrence rate of 40 to 70% after surgery if the underlying inflammation isn’t managed. Nasal polyps recurrence prevention isn’t a one-time fix — it’s an ongoing process.

Continue corticosteroid nasal sprays as prescribed by your ENT. Perform daily saline nasal irrigation to keep passages clear. Get allergy testing and treatment — sublingual immunotherapy or allergy shots can reduce the inflammatory triggers that drive polyp regrowth. Manage asthma if applicable, and avoid known irritants like cigarette smoke, strong chemical fumes, and NSAIDs if you have aspirin sensitivity.

Regular ENT follow-ups with nasal endoscopy from a sinus specialist catch regrowth early, before symptoms return in full. Patients who stay consistent with their post-surgical management plan have significantly better long-term outcomes than those who stop treatment once they feel better.

Take the next step

Nasal polyps are common, treatable, and not dangerous — but they can steadily worsen over time if left alone. Breathing gets harder, sleep suffers, smell fades, and sinus infections keep cycling back.

Medical treatment works for mild cases. But when medication falls short, surgery offers definitive relief. The key is accurate diagnosis and a comprehensive plan that addresses both the polyps and the underlying inflammation driving them.

If you’re dealing with persistent nasal congestion, smell loss, or sinus infections that won’t quit, schedule a consultation with Sinus and Snoring MD. Dr. Swerdlin and Dr. Plein have over 25 years of combined experience diagnosing and surgically treating nasal polyps — and our in-office surgical suites mean you can get the care you need without a hospital visit.

Frequently asked questions

Do nasal polyps go away on their own? No. Nasal polyps rarely resolve without treatment. Corticosteroid sprays can shrink small polyps, but larger ones typically require surgical removal. Without addressing the underlying inflammation, polyps tend to persist or grow.

Can nasal polyps cause loss of smell? Yes. Nasal polyps are one of the most common causes of reduced or lost sense of smell. They physically block odor molecules from reaching the olfactory nerve and cause inflammation that damages smell receptors. Surgery can often restore smell, especially when performed before prolonged damage occurs.

How long is the recovery from nasal polyp surgery? Most patients return to normal activities within one to two weeks after endoscopic sinus surgery. You’ll use saline rinses during recovery, and follow-up visits ensure proper healing. Some mild congestion and drainage are normal for several weeks.

What’s the difference between nasal polyps and a deviated septum? A deviated septum is a structural issue with the wall between your nasal passages, while nasal polyps are soft tissue growths caused by chronic inflammation. Both can cause nasal obstruction, and some patients have both conditions. An ENT examination can distinguish between them and determine the best treatment approach.