Part of BBC America Reveals.

My Secret Female Body takes a look at the life of Danny, a female-to-male transsexual. Born as Katie, Danny has been living as a man for four years and has had male hormone injections every two weeks for a year. Now, at 22, Danny undergoes a dramatic surgical transformation, which physically changes his body from female to male. This documentary sees Danny embark on the first stage of this irreversible procedure – a double mastectomy, followed by complicated penis surgery.