AIM- This study is designed to compare the symptomatic profile of Chronic Rhinosinusitis before and after FESS by SNOT-20 questionnaire. Materials and Method: An Observational Prospective study was conducted among patients attending the Department of ENT, Head & Neck Surgery AIIMS Bhubneshwar, Study duration of two years. A group of 40 patients with symptom of CRS were included in the study