The increasing survival rate of gynaecological cancer patients highlights the need to improve their Quality of Life (QoL) after treatment. Among all QoL factors, sexuality is unfortunately often neglected, especially vaginal dryness and fibrosis/stenosis. Currently, the latter is standardly treated by vaginal dilators, which may induce pain and discomfort (1). A new possibility, already used in some centers, is the MonaLisa Touch® system, a microablative CO2 laser (2). Its efficiency to improve sexual QoL has already been demonstrated in breast cancer patients treated with chemotherapy and/or hormonotherapy and in menopausal women (3). Unfortunately, almost no study have been conducted yet for patients undergoing radiotherapy to the pelvic area to prevent vaginal morbidity. Our randomised study will explore the benefits of the MonaLisa Touch® device for the prevention of sexual adverse events induced by pelvic (chemo-) radiotherapy for pelvic cancers.