Frozen sections offer an important and helpful adjunct to intraoperative diagnosis and its use has greatlyimpacted on the care of gynecological oncology patients. Frozen section diagnosis is a reliable method for surgicalmanagement of gynecology oncology patients. Sensitivity of frozen section is acceptable and its specificity isalmost perfect. False negative rate is low and false positive rate is negligible. Diagnostic problems can occur dueto technical limitations especially in mucinous and borderline tumors. A good communication established betweenclinicians and pathologists is necessary to obtain more accurate results and to minimize the number of deferredcases.