In 2009 he set out five lessons that he had learned from his own experiences, stressing the importance of early intervention and help for parents.
He wrote in an editorial in the Independent:
"The first lesson I learned was the importance of early intervention and help. The day you find out your child has a disability you're not just deeply shocked, worried and upset - you're also incredibly confused.
"It feels like you're on the beginning of a journey you never planned to take, without a map or a clue which direction to go in."
During election campaigning last year, the Tory leader was confronted by a father who claimed his wheelchair-bound son had been excluded from the mainsteam education sector.
Jonathan Bartley, whose son has spina bifida, said his family had nearly been torn apart by the struggle to secure a school place said Conservative policy was harming the interests of disabled children.
Mr Cameron responded:
"I couldn't be more passionate about the subject. I had a hell of a battle with my own son. "We have got to get the children into the school they want, whether it is mainstream or whether it is special. I want you to get what's right for your son. It should be your choice. You shouldn't have to battle."