We compared the results of 225 gynecological frozen section diagnosis with their final diagnosis from January 2000 to April 2002. In Zeynep Kamil Hospital the frequency of frozen section was 1% . 153 ovarian tissue samples were obtained. The frozen section diagnosis for ovary was compatible with the final diagnoses in 94.4% of cases. 3.92% of cases were falsely negative and 0.65% of cases were falsely positive. The sensitivity rate of frozen section diagnosis for benign, borderline and malignant lesions were found to be 99.0% (107/108), 60% (6/10) and 94.1% (32/34), respectively.