Every year almost a million children die as a result of violence or accidents - many of which could have been prevented.
Health Check reports on those children at the extreme end of risk - child slaves.
India has around 10 million child labourers - more than any other country in the world.
Kailash Satyarthi, Chairperson, Global March Against Child Labour and President, Global Campaign for Education, explains why child slaves are at such high risk from injury and accuses the Indian government of not doing enough to improve their situation.
There are some children manage to escape the life of a bonded labourer.
BBC reporter Nivedita Pathak travels to a rescue and rehabilitation centre in Rajasthan, western India, which is home to 100 former child slaves.
She meets three boys who describe their stories of exploitation and abuse.