A new parent questionnaire is the first test designed to gauge anxiety in children with autism.

Two new studies point to the possibility of detecting autism mutations before birth — along with all the ethical and logistical problems that may bring.

Australia has become the latest country to establish guidelines for diagnosing autism, but getting clinicians to comply may be difficult.

Doctors can now order a blood test that its makers say may help flag autism, but experts say the test is not appropriate for use in clinics.

Some autism traits look the same across cultures, and they could form the basis of a global screening tool.

Some autistic children don’t show traits of the condition until age 5 or later.

New and improved autism screens and diagnostic tools promise to streamline the long path to an autism diagnosis.