Nasal polyps are new growths that protrude from the surface of the nasal mucosa. They are formed due to long - term inflammation or allergic reactions that cause the nasal mucosa to swell and proliferate.

Nasal polyps can lead to symptoms such as nasal congestion, reduced sense of smell, and snoring during sleep.

Nasal polyps usually require surgical treatment. However, there is a possibility of recurrence in some cases after the surgery.