Nasal polyps
are non-neoplastic masses of edematous nasal or sinus mucosa
INCIDENCE
Incidence
in general population is unknown possibly between 1 % -2 % .There is
higher incidence in asthmatics (20 –30 %) and even higher (49 %) in
those asthmatics hypersensitive to aspirin .It is most common in middle
aged man.