- Gender dysphoria is classified in Diagnostic and Statistical Manual of Mental Disorders (DSM-5)
- When it manifests in young people, there can be various reasons, for example, coming to terms with being gay.
- Therapy can explore the reasons for this and help understand how to best help the patients
- For some patients, the right course of action is to have gender affirming surgery and transition
- For other patients, this is a temporary discomfort with their identity that passes or can be resolved otherwise (e..g by accepting sexual identity etc). <--- This is the controversial part. Trans right activists see this position as an erasure of trans identity/denying their right to exist, etc pp. They seek to suppress any kind of research investigating e.g. the rapid rise in gender dysmorphia in teenagers as a medical phenomenon (e.g. in https://quillette.com/2019/03/19/an-interview-with-lisa-litt...), and seek to ban any books/research/open debate in this area.
I have no idea on the biological or psychological reasons, but I object to any suppression of research on medical phenomena.