목적: A high growth of the studies considering chronic rhinosinusitis with nasalpolyps is evident over the last years. However, epidemiologic studies differ significantly as various diagnostic methods are used and therefore it is not always possible to sufficiently compare them. Above-mentioned facts impede estimation of the real rates and tendencies of nasal polyposis morbidity. Thus, it is possible to assume that preventive health examinations are more informative. 방법:A total of 4462 patients were examined during routine ENT preventive health examinations, both males and females in the 20 to above 60 years age group. Diagnostic workup included diligent history and complaints analysis, endoscopy of the ear, nose and throat. 결과:Chronic rhinosinusitis with nasal polyps was diagnosed in 1,32%. Amongdiagnosed prevailed patients in age groups 50-59 and 40-49 years (74,6%). Numberof examined male and female patients in age group 30-39 were 2,7 times higher than of the patients in age group above 60 years. There was no disease recorded in age group 20-29. Sex distribution was the same in age group from 30 to 49 years. However, in age group above 50 years male morbidity was higher. Besides, approximately every seventh (13,6%) patient had preceding surgical treatment of nasal polyposis. 결론:The prevalence of chronic rhinosinusitis with nasal polyps inexamined cohort was comparable with the morbidity reports from other regions.