Nasal polyps

Nasal polyps are soft, sac-like growths on the lining of the nose or sinuses.

Causes

Nasal polyps can grow anywhere on the lining of the nose or the sinuses. They often grow where the sinuses open into the nasal cavity. Small polyps may not cause any problems. Large polyps can block your sinuses or nasal airway.

Nasal polyps are not cancer. They seem to grow due to long-term swelling and inflammation in the nose from allergies, asthma, or infection.

No one knows exactly why some people get nasal polyps. If you have any of the following conditions, you may be more likely to get nasal polyps:

• Aspirin sensitivity
• Asthma

  Asthma

  Asthma is a chronic disease that causes the airways of the lungs to swell and narrow. It leads to breathing difficulty such as wheezing, shortness o...

  

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• Long-term (chronic) sinus infections
• Cystic fibrosis

  Cystic fibrosis

  Cystic fibrosis is a disease that causes thick, sticky mucus to build up in the lungs, digestive tract, and other areas of the body. It is one of th...

  

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• Hay fever

  Hay fever

  Allergic rhinitis is a diagnosis associated with a group of symptoms affecting the nose. These symptoms occur when you breathe in something you are ...

  

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Symptoms

If you have small polyps, you may not have any symptoms. If polyps block nasal passages, a sinus infection can develop.

Sinus infection

Sinusitis is present when the tissue lining the sinuses become swollen or inflamed. It occurs as the result of an inflammatory reaction or an infect...

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Symptoms include:

• Runny nose
• Stuffed up nose

  Stuffed up nose

  A stuffy or congested nose occurs when the tissues lining it become swollen. The swelling is due to inflamed blood vessels. The problem may also in...

  

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• Sneezing
• Feeling like your nose is blocked

  Nose is blocked

  A stuffy or congested nose occurs when the tissues lining it become swollen. The swelling is due to inflamed blood vessels. The problem may also in...

  

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• Loss of smell
• Loss of taste
• Headache and pain if you also have a sinus infection
• Snoring

With polyps, you may feel like you always have a head cold.

Exams and Tests

Your health care provider will look in your nose. They may need to perform nasal endoscopy to see the full extent of the polyps. Polyps look like a grayish grape-shaped growth in the nasal cavity.

You may have a CT scan of your sinuses. Polyps will appear as cloudy spots. Older polyps may have broken down some of the bone inside your sinuses.

CT scan

A computed tomography (CT) scan is an imaging method that uses x-rays to create pictures of cross-sections of the body. Related tests include:Abdomin...

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Treatment

Medicines help relieve symptoms, but rarely get rid of nasal polyps.

• Nasal steroid sprays can sometimes shrink polyps. They help clear blocked nasal passages and runny nose. Symptoms return if treatment is stopped.
• Corticosteroid pills or liquid may also shrink polyps, and can reduce swelling and nasal congestion. The effect lasts a few months in most cases.
• Allergy medicines can help prevent polyps from growing back.
• Antibiotics can treat a sinus infection caused by bacteria. They can't treat polyps or sinus infections caused by a virus.

If medicines don't work, or you have very large polyps, you may need surgery to remove them.

• Endoscopic sinus surgery is often used to treat polyps. With this procedure, your surgeon uses a thin, lighted tube with instruments at the end. The tube is inserted into your nasal passages and your surgeon removes the polyps.
• Usually you can go home the same day.
• Sometimes polyps come back, even after surgery.

Outlook (Prognosis)

Removing polyps with surgery often makes it easier to breathe through your nose. Over time, however, nasal polyps often return.

Loss of smell or taste does not always improve following treatment with medicine or surgery.

Possible Complications

Complications may include:

• Bleeding
• Infection
• Polyps coming back after treatment

When to Contact a Medical Professional

Contact your provider if you often find it hard to breathe through your nose.

Prevention

You can't prevent nasal polyps. However, nasal sprays, antihistamines, and allergy shots may help prevent polyps that block your airway. Newer treatments such as injection therapy with anti-IGE antibodies may help prevent polyps from coming back. 

Treating sinus infections right away also may help.