Objectives:To assess the prevalence of Chronic Rhinosinusitis in Saudi Arabia, identify the most affected age group and Gender, assess the most common risk factors for Rhinosinusitis and determine recurrent of Rhinosinsitis after treatment and after surgery and to compare them. Methods: A cross-sectional study which was conducted electronically through a random sampling includes434 person from Saudi Arabia during 2016. The used questionnaire includes 20 questions and was formulated to include demographic aspects, clinical features, risk, medical and surgical history. The questionnaire items were designed and written to suit the tradition and the Islamic culture. Results: about half had infected with chronic sinusitis. 61.6% were females. 55.6% were between (21-30) years old. 31.9% of infected respondents still having the inflammation without complications for more than three months. 97.6% of infected respondents are treated using medical drugs.96.9% of the infected ones have the inflammation many times after having drugs as a way of treatment, while 3.1% of them have the inflammation many times after having surgical treatment but it is very important to clarify that the first case's percentage is much higher than the second; because most of the infected people use the medical drugs as a way of treatment not the surgical treatment.The most of our infected respondents weren't smokers. 61.6% of infected respondents suffer from sensitivity. 82.9% of infected respondents hadn't nasal polyps.