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Nasal polyps are growths that develop on the inside of your nose or sinuses. They are not able to spread to other parts of the body. You may have a single nasal polyp or you may have several. Nasal polyps are soft and pearl-colored.
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The exact cause is not known. Several factors may contribute to nasal polyps, including:
Men, especially those older than age 40 years, are at increased risk. Other factors that may increase the chances of nasal polyps:
Very small nasal polyps may not cause any symptoms. Larger polyps may block airflow, making it difficult to breathe through the nose. They can also block the passage of odors, reducing the sense of smell.
Symptoms may include:
You will be referred to a doctor who specializes in diagnosing and treating nasal polyps.
You will be asked questions about your symptoms and medical history. A physical exam will be done, paying particular attention to your nose.
Images may be done with a CT scan .
Other tests may include:
- Sweat test
- Allergy skin tests
- Biopsy of the polyp
Treatment options include:
Nasal polyps may be treated with:
- Steroid nasal sprays to reduce swelling, increase nasal airflow, and help shrink polyps
- Medications to help reduce swelling and shrink polyps
- Antihistamines to control allergies
- Antibiotics if a bacterial infection is present
In some cases, surgery may be needed. This can be done with:
- Polypectomy—Removing nasal polyps. If the polyps are small, this can be done in your doctor's office. Polyps often return, so the procedure may need to be repeated.
- Endoscopic sinus surgery—Removing the nasal polyps and opening the sinuses where the polyps form.
American Academy of Allergy Asthma & Immunology
American Academy of Otolaryngology—Head and Neck Surgery
Allergy Asthma Information Association
Nasal polyps. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T114065/Nasal-polyps . Updated March 7, 2018. Accessed March 26, 2018.
Nasal polyps. Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/ear,-nose,-and-throat-disorders/nose-and-paranasal-sinus-disorders/nasal-polyps. Updated September 2017. Accessed March 26, 2018.
Nasal polyps. Patient website. Available at: https://patient.info/health/nasal-polyps-leaflet. Updated February 24, 2018. Accessed March 26, 2018.
White AA, Stevenson DD. Aspirin-exacerbated respiratory disease: update on pathogenesis and desensitization. Semin Respir Crit Care Med. 2012;33(6):588-594.
- Reviewer: EBSCO Medical Review Board Marcin Chwistek, MD
- Review Date: 03/2018
- Update Date: 05/01/2014