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Nasal Polyps

Nasal polyps are noncancerous growths that develop in the lining of the nasal passages or sinuses. They can vary in size and may be associated with conditions such as allergies or asthma. People with nasal polyps might experience a range of symptoms, including nasal congestion and changes in sense of smell.

Lungs & Respiratory
  • What are nasal polyps exactly?
    MedlinePlusMay 2026

    Nasal polyps are soft growths that develop on the lining of your nose or sinuses. They're not cancer and usually grow slowly over time.

  • How do nasal polyps affect my breathing?
    MedlinePlusMay 2026

    Nasal polyps can block airflow through your nose, making it hard to breathe normally. They may also cause stuffiness similar to a cold that doesn't go away.

  • Can nasal polyps cause other health problems?
    MedlinePlusMay 2026

    Yes, nasal polyps can lead to sinus infections and may affect your sense of smell. They can also interfere with sleep and make it harder for your nose to filter air properly.

  • Why does having allergies make me more likely to get nasal polyps?
    MedlinePlusMay 2026

    Allergies cause inflammation and swelling in your nasal passages, which creates the right conditions for polyps to grow. People with allergies, asthma, or certain infections are more likely to develop nasal polyps.

  • Are there different types of nasal polyps?
    MedlinePlusMay 2026

    Most nasal polyps are the same type, but they can vary in size and location. Some grow from the nose itself, while others grow from the sinuses.