This research aims to understand the impact of fertility preservation consultation on transgender patients' projection and how the possibility of preserving gametes influences transgender people's transition paths, parenthood projects and health and health of transgender people through qualitative interviews.

This research will also study the representations of members of medical and reproductive biology teams the possible use of stored gametes, and how these representations influence their clinical practice.

clinical practice. To answer the research question, we plan to include 30 patients who have consulted for fertility preservation at the at the CECOS of the Tenon hospital, located in the 20th arrondissement of Paris, and 20 members of the center's healthcare team.

care team.

Since the 2016 law, transgender people no longer need to provide "irreversible and medical proof of a physical transformation" in order to carry out a sex change at the Civil Registry, which puts an end to systematic sterilization and opens up the possibility of a hormonal-only transition. Yet hormonal treatments can have an impact on the fertility of transgender people, compromising a subsequent project for parenthood.

The Reproductive Biology department at Tenon, where the research will take place, now offers self-conservation of female and male gametes before hormone replacement treatments are introduced, or during a therapeutic window. Fertility preservation in transgender women relies primarily on sperm self-preservation. For transgender men, fertility preservation relies on cryopreservation of mature oocytes after ovarian stimulation.

In addition to assessing the psychic impact of care in order to prevent potential deleterious effects, psycho-sexological consultation offers an opportunity to express the desire for a child, a desire often inhibited for a long time, as well as information on the possibilities of reuse.

When it comes to research around the issue of fertility preservation for transgender people, there is often talk of problems concerning access to this care: the discriminatory practices of certain centers that refuse transgender people, the lack of training in transidentity issues for care teams, etc. The coercive weight of the law seems to be enough to evade the issue by moving it into the realm of legislation. And yet, in our clinical experience, the question of gamete reuse is a subject that merits research to determine the obstacles and levers for both caregivers and patients.

Inclusion Criteria:

• Any transgender person undergoing fertility preservation in the department
• Any member of the reproductive biology and medicine services team
• Aged 18 and over, with or without children
• Informed and having signed consent to participate in the research project

Exclusion Criteria:

• No social security
• Persons under guardianship

For patient : transgender patients consulting as part of a fertility preservation course For care teams : care teams from the biology and reproductive medicine department