Any condition that triggers chronic inflammation in your nasal passages or sinuses, such as infections or allergies, may increase your risk of developing nasal polyps. Conditions often associated with nasal polyps include:
- Asthma, a disease that causes overall airway inflammation and constriction
- Aspirin sensitivity may cause some people to be more likely to develop nasal polyps
- Allergic fungal sinusitis, an allergy to airborne fungi
- Cystic fibrosis, a genetic disorder that results in the production and secretion of abnormally thick, sticky fluids, including thick mucus from nasal and sinus membranes
- Churg-Strauss syndrome, a rare disease that causes the inflammation of blood vessels
Your family history also may play a role. There's some evidence that certain genetic variations associated with immune system function make you more likely to develop nasal polyps.
March 08, 2014
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- Kalish L, et al. Topical steroids for nasal polyps. Cochrane Database of Systematic Reviews. http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD006549.pub2/abstract. Accessed Oct. 15, 2013.
- DeMarcantonio MA, et al. Nasal polyps: Pathogenesis and treatment implications. Otolaryngologic Clinics of North America. 2011;44:685.
- Diagnosis and treatment of respiratory illness in children and adults. Institute for Clinical Systems Improvement. https://www.icsi.org/guidelines__more/catalog_guidelines_and_more/catalog_guidelines/catalog_respiratory_guidelines/respiratory_illness/. Accessed Oct. 15, 2013.
- Aring AM, et al. Acute rhinosinusitis in adults. American Family Physician. 2011;83:1057.
- Adkinson NF, et al. Middleton's Allergy: Principles and Practice. 8th ed. Philadelphia, Pa.: Saunders Elsevier; 2014. https://www.clinicalkey.com. Accessed Oct. 15, 2013.
- Bhattacharyya N. Clinical presentation, diagnosis, and treatment of nasal obstruction. http://www.uptodate.com/home. Accessed Oct. 15, 2013.
- Naegleria fowleri. Centers for Disease Control and Prevention. http://www.cdc.gov/parasites/naegleria/. Accessed Oct. 15, 2013.
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