Nasal polyps

When part of the membrane that lines the inner part of the nose becomes swollen and sticks out into the cavity of the nose, the growth that forms is called a polyp. The exact cause of polyps is unknown, but some people are more susceptible than others. Polyps are harmless, but a big one or several small ones can obstruct the airway of the nose and make breathing difficult and impair the sense of smell.

If they are causing problems, polyps are treated with anti-inflammatory medicines, such as glucocorticosteroids, or are removed by a minor operation under a local anaesthetic (which deadens the pain but does not put you to sleep). Anti-inflammatory medicines may also be prescribed to stop polyps regrowing.