Adults can have autism, and for many people, this condition is not diagnosed until adulthood. If you are wondering whether you or someone you care about has autism, screening tests are available, and ...

Backers claim the tests can predict a child’s risk of autism using a strand of hair or a mother’s blood, but critics say they are not ready for the market. A lab test used to determine the presence of ...

An autism expert sparks fierce debate over whether the spectrum has grown too broad, leading to misdiagnosis in children and ...