Nasal polyps are soft, painless, non-cancerous growths in the nose or sinuses, usually shaped like teardrops. They often form where the upper sinuses drain into the nose.
People with long-term sinus inflammation may develop them. About 20–30 percent of people with chronic rhinosinusitis (CRS) get nasal polyps, which can impact quality of life and mental health.
They can be diagnosed with a nose camera (endoscopy) or a CT scan.