An 11-year-old child who was born a girl will officially return to his Gold Coast school next year as a boy after making the brave decision to begin testosterone treatment as part of the transition to change genders.

Savvy Klee, who was born Savarnni, has identified as a boy from the age of three.

His mother Katherine Martin initially thought her daughter was just a tomboy because he refused to wear dresses and always gravitated towards masculine toys, but she quickly realised it wasn't just a phase.

Eleven-year-old Savvy Klee, who was born a girl, will return to his Gold Coast school next year as a boy after making the brave decision to change gender and begin testosterone treatment

'When he was three, we would go to parties and I would have girly dresses out and it would become a nightmare trying to get him to wear them,' Ms Martin told Daily Mail Australia.

'When his brother was born that was when Savvy really changed and it became apparent that he identifies as a boy. He would get upset and yell 'Why was Preston born a boy? Why does God hate me? I want to have all the boy bits too'.

'I didn't know anyone who was transgender back then. I just thought maybe he was a tomboy. It was really new to me but I knew something was going on.'

Psychologists later confirmed Savvy had Gender Identity Disorder and suggested he should change his gender.

'The psychologist said from the first session he needed to change gender. That was fantastic for me to hear because I knew I was making the right decision,' Ms Martin said.

'I think when it became apparent that it wasn't a phase, I used to describe it to people as losing my daughter.

Savvy Klee, who was born Savarnni, has identified as a boy from the age of three. He began changing his clothes so he would look like a boy and was drawn to more masculine toys

Savvy was born a girl but would get upset when his mother Katherine tried to make him wear dresses

His mother Katherine initially thought her daughter was just a tomboy but she quickly realised it wasn't just a phase when Savvy's younger brother Preston, now 6, was born

'Then I worked as a funeral director and I saw people who have really lost their children. I thought how selfish of me to compare my child changing gender to losing a child.

'Savvy hasn't really changed because he has always been like this. The decision was really easy to adapt to because everybody knows him like this and I have always made sure he can express himself and be who he is.'

Ms Martin said they speak about Savvy being transgender on a daily basis after initially going through options available to the 11-year-old.

'I tried to find stories of transgender people to show him and once he saw the transformations he got excited and it became real for him,' Ms Martin said.

'I've never made Savvy hide who is, so he openly talks about being transgender.'

Savvy and his mum will meet with a transgender specialist next year so he can start hormone treatment and will officially register his name change.

When Savvy's brother Preston was born that was when Savvy really changed and it became apparent that he identifies as a boy. He would get upset and yell 'Why was Preston born a boy? Why does god hate me?'

Savvy Klee, who was born Savarnni, has identified as a boy from the age of three

Psychologists confirmed Savvy had Gender Identity Disorder and suggested he should change his gender

He will also return to school next year as boy, which means he can wear the male uniform.

'When I went into the school to tell them about the change, the school was worried about the way Savvy was going to be treated,' she said.

'But school life for Savvy has been really good, he is so loved by the teachers and students and his welfare is in their best interest.

'He knows people will talk and is prepared for that. He hasn't been teased any more than any other child. Every now and again there will be a few kids that can say a few nasty things but that's unfortunately a part of growing up.'

Ms Martin said Savvy has only had one bad experience at a vacation care centre that he attended for a brief period where children bullied him on a daily basis.

Savvy (pictured here with younger brother Preston) talks to his mum about being transgender on a daily basis after initially going through options available to the 11-year-old

Savvy and his mum will meet with a transgender specialist next year so he can start hormone treatment and will officially register his name change

Savvy, pictured with his brother Preston and mum Katherine, will return to school next year as boy, which means he can wear the male uniform

His mum said Savvy has only had one bad experience at a vacation care centre that he attended for a brief period where children bullied him on a daily basis

'Of all the transgender articles I read, it is always a traumatic time growing up. Ours isn't like that, Savvy has really breezed through it,' Ms Martin said.

'He knows who he is and he knows who he wants to be. He is not hiding who he is. It's really nice to see. I'm very proud of him.

'I'm ecstatic and so emotionally overwhelmed with just how amazing he is, he is not worried about what anyone else thinks of him, he is doing this for him and I think that is wonderful.

'He is happy and that's the most important thing. He really wants people to understand Gender Identity Disorder and be supportive.'

Savvy will see a transgender specialist next year to see what path they should go down in terms of hormones. His mum said in his opinion he would be on them right away because he can't wait

Savvy's mum Katherine said his school life has been great, but he knows people will talk about his gender change. She said he hasn't been teased any more than any other child