There seems to be an idea that is bouncing around here that gender identify is somehow affected by hormone levels.
However, for youths and young adults who identify as transgender, this does not seem to be the case. Rather, their hormone levels are consistent with their birth gender, rather than the gender they identify as. The experience of being transgender is not an issue of a hormone imbalance.
Source: Johanna Olson, et al. Journal of Adolescent Health, July 21.
Updated by anonymous