A rating of high severity of autism from the DSM-5, the latest version of the “Diagnostic and Statistical Manual of Mental Disorders,” tracks with low intelligence scores.

Many girls hide their autism, sometimes evading diagnosis well into adulthood. These efforts can help women on the spectrum socially and professionally, but they can also do serious harm.

A project in Scotland dramatically increased the accuracy of autism diagnosis and cut waiting times in half.

Autism and attention deficit hyperactivity disorder often coincide, but the search for common biological roots has turned up conflicting evidence.

Roughly one in five children who has an extra piece of chromosome 7 also meets the criteria for an autism diagnosis.

Autism’s underlying biology, associated behaviors and treatments can all put people on the spectrum at serious risk for obesity.

A brief questionnaire written with guidance from people with autism is the first of its kind to assess quality of life among adults with the condition.

After lagging behind other countries for decades, France is working on a new national plan for autism.

Watch the complete replay of James McPartland discussing the need for clinically useful biomarkers for autism.

The prevalence of autism in the United States remained relatively stable from 2014 to 2016, according to a new analysis.