Pronounced: NAY-suhl PAH-lip
by Jennifer Lewy, MSW
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.
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:
Treatment options include:
Nasal polyps may be treated with:
In some cases, surgery may be needed. This can be done with:
There are no current guidelines to prevent nasal polyps because the cause is unknown.
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.
Last reviewed March 2018 by EBSCO Medical Review Board Marcin Chwistek, MD
Last Updated: 5/1/2014
EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
To send comments or feedback to our Editorial Team regarding the content please email us at firstname.lastname@example.org. Our Health Library Support team will respond to your email request within 2 business days.