The Determinants of Fertility Preservation in TRANSgender Patients.

"No intervention. This is a retrospective study. Data will have been collected in routine consultations as part of the transition process for transgender patients.~Description of the collected informations : gender of destination, BMI, siblings, children, moral, previous hormone therapy, when the project was born, change of marital status desired or carried out, ALD status, psychiatric assessment, desire for future care for the transition course. Desire to preserve erectile function, parenthood desire, couple projections, type of couple, cryopreservation desired, done or not, desire of pregnancy, ultrasound count of antral follicles, initial hormone assays and tests : BMD, pelvic ultrasound? Data relating to stimulation and ovarian puncture and sperm collection."