The clip features Massachusetts teen Emmie Smith, 17, explaining her decision to undergo the procedure, and preparing for the surgery.
Smith who is taking a gap year to help transition before starting college explains that she allowed cameras in because she wanted to demystify the surgical process.
She said: I think people are fascinated by gender reassignment surgery. Theyre insatiably curious about it but they also dont know how to have a conversation about it.
The clip shows parts of the surgery in graphic detail, as her penis is removed and the skin transformed to create a vagina.
The teen says she has never regretting transitioning, adding: Being closeted was one of the worst parts of my life.
If youre not living freely thats time wasted, and I felt my time was wasted pretending to be a boy. [Coming out] was the best decision in my life.
