In a study published in the 'Journal of Child Psychology and Psychiatry', researchers analyzed 34 children who had been diagnosed with autism before the age of 5.
As scientist's followed those children, they found some of them lost all symptoms and no longer met the criteria for the disorder.
It didn't happen overnight and was the result of years of hard work, they said.
Scientists can't predict what percentage of kids can outgrow it but they say they know it's a minority.
They learned that early intervention and diagnosis is key but that many children with autism will not have the same results.