Positron emission tomography/computed tomography (PET/CT) is the one of the most commonly used molecular imaging techniques in gynecological cancer diagnosis, staging and recurrence detection. Some parameters are used as diagnostic criteria for PET/CT to increase the accuracy of detecting malignancy. The most typical diagnostic criterion parameter is the maximim standardized uptake value (SUV_(max)). Recently, metabolic tumor volume (MTV), total lesion glycolysis (TLG) and even intratumoral 18-fluorodeoxyglucose (FDG) uptake heterogeneity (IFH) have become significent parameters as prognostic factors for ovarian cancer. Whole-body PET/CT is useful for assessment of recurrence of ovarian cancer in the presence of symptom.