There are legal and medical disparities in use of assisted reproductive technologies (ART) between various countries of the world, including of Europe, regarding conditions of access (to fulfil some sociodemographic criteria) and availability of medical technologies (techniques and methods which are legal and available). These disparities lead to "procreative tourism" or "cross-border fertility" care around the world. According to recent studies, the main reasons are legal, related to the rapidity of medical care and performance. The current study at French national Institute for demographic studies (INED) on French cross-border patients using ART in four European countries highlights an unsatisfied demand in the field of infertility treatments in France, concerning the donation of oocytes and age limit imposed on women.