It's 5 alpha reductase deficiency. t is found worldwide, with high-frequency clusters in the Dominican Republic, Papua New Guinea, Turkey, Egypt, and Brazil, often linked to consanguinity.
The guevedocos 'penis at 12' is one particular group in Salinas where there is a huge cluster of this.
He wasn't born in the wrong body - he simply had ambiguous genitalia at birth.
By puberty it became clear he would have gone through male puberty. How this was dealt with by his family is uncertain - although we know he was playing football outside, an activity that his sisters did not join with when the sports coaches noticed him and recognised the possibility he presented.
When are they taking the Women's boxing Gold medal from him? How about the other men who won them - he wasn't the only one.