Background/aims: A tissue mass derived from mucosa or submucosa and extending into the lumen of the bowel is referred to as a polyp. Re- moval of polyps detected during colonoscopy and establishment of the pathological diagnosis are recommended since cancer has become the leading lesion and due to the potential cancer risk regardless of polyp size. In this study, we aimed to determine the prevalence of polyps and their histopathological results based on colonoscopies performed in our Unit. We aimed to reveal the polyp prevalence and histopathological re- sults in our colonoscopy experience. Material and Methods: Colonos- copy reports between February 2005 and July 2010 were retrospecti- vely reviewed from the endoscopy archive system in Uludag University, Endoscopy Unit, Department of Gastroenterology. Results: According to the colonoscopy reports, a total of 1379 polyps (22.06%) were de- tected in 894 patients; 914 of these polyps with attainable pathology results were analyzed. 530 of the patients (59.3%) were male and 364 (40.7%) were female. Of the polyps with neoplastic characteristics, 621 (68%) were tubular adenomas, 66 (7.2%) tubulovillous adenomas, and 5 (0.5%) villous adenomas. Conclusions: In this study, the prevalence of colon polyp types over an approximately six-year period was descri- bed in patients undergoing colonoscopy for various reasons in our En- doscopy Unit, which provides healthcare to an important part of the Eastern Marmara region. To determine the prevalence more clearly, es- pecially for determination of prognosis in cases with dysplasia, additio- nal wider and prospective studies are needed.