Transgender child: “I paused puberty to become a boy”
1 December 2016 Last updated at 07:08 GMT
Ten-year-old Jason is taking hormone blockers to pause his puberty. He was born a girl, but always felt like he was in the wrong body.
He tells the Victoria Derbyshire programme what it is like to grow up wanting to be a boy.
The Victoria Derbyshire programme is broadcast on weekdays between 09:00 and 11:00 on BBC Two and the BBC News channel.