The uterine manipulator is a device commonly used in minimally invasive hysterectomy surgery for endometrial cancer. However, without substantial evidence to support its use, surgeons are required to make decisions about its use based only on their personal choice and surgical experience. A retrospective study demonstrated how uterine manipulator use in early-stage endometrial cancer (FIGO I-II) for minimally invasive surgery was associated with a worse oncologic outcome in patients with uterus-confined endometrial cancer (FIGO I-II) who underwent minimally invasive surgery. The main objective of this study is to prospectively confirm the results obtained retrospectively, assessing the relapse rate in these patients related to the use or not of a uterine manipulator during the endometrial surgery. Secondary, the presence of risk factors that contraindicate the use of the uterine manipulator will also be evaluated.