Gender dysphoria is defined as a persistent incongruence between an experienced gender and the assigned sex at birth Transgender and gender nonconforming persons desire to modify their appearance to be consistent with their self-identified gender identities. In non-binary people, contrary to binary transgender persons, self-identified gender identities do not fit the classical pattern male/female.

During the last decennium, an increase in the number of young subjects, especially children and adolescents, referred to gender identity centres has been observed. A new nosological entity "rapid-onset gender dysphoria in adolescents and young adults" has recently been described in the literature, whose etiology has not been well understood.

This growing demand of adolescents and young adults observed in the recent years is not well understood.

Inclusion Criteria:

• be a parent of a child <18 years followed in the endocrinology department of the University Hospital of Nancy for gender dysphoria
• be in stable couple
• both parents agree to participate
• capacity to communicate in French
• Person who has received complete information on the organization of the research and who agreed to the exploitation of the data

Exclusion Criteria:

• Refusal to participate
• Inability to be physically, psychologically or linguistically involved in the study

The study will be proposed to parents of transgender children <18 years of age followed in the endocrinology, diabetology and nutrition department of the University Hospital of Nancy on the occasion of the regular follow-up visit at the outpatient clinic ( consecutive recruitment).

Not planned