Brazil’s transgender twins are world’s first to change sex, doctors say

The twin Brazilian sisters were born as biological males and began hormonal treatment at the age of 15. They are the youngest to change sex in the country.

RIO DE JANEIRO, BRAZIL - Two 19-year-old twins in Santa Catarina state achieved their dream of changing sex through surgery this week. The procedure is considered unprecedented in the world for having been performed on two identical transgender female twins and almost simultaneously, according to the medical team, who performed the sex reassignment surgery at the Santo Antônio Hospital, in Blumenau.

The sisters were born with the biological male sex, and began hormonal treatment with contraceptives at the age of 15 for the transition. The twins, who chose to remain anonymous, are Brazilian and are also the youngest . . .

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