What are nasal/ sinus polyps?
In very simple terms, chronically inflamed sinus and nasal tissues may swell so much that the lining starts to hang from normal structures within the sinus passages, creating areas of tissue with an appearance similar to a bunch of grapes. Polyps block nasal breathing and sinus drainage pathways. Nasal polyps are benign but frequently return after removal, unless the underlying factors that created them in the first place are corrected.
