Gender dysphoria is where a person experiences distress because their biological sex differs from their gender identity. For example, they may have been assigned female at birth, but identify as a man (a trans man). Or they may have been assigned female at birth, but identify as neither a man nor a woman (a non-binary person).

There is some evidence that autistic people are more likely than other people to have gender dysphoria, but there is little evidence about the reason why.

https://www.autism.org.uk[...]about/what-is/gender.aspx