Finding a difference between people with and without autism is only the first step toward identifying a clinically useful marker of the condition.

Men with autism who have above-average intelligence may not achieve typical financial and personal milestones — but many are content.

A comprehensive catalog of the genes that show ties to both autism and cancer highlights the role of cell growth in both conditions.

Individuals who have autism or another psychiatric condition tend to pair up with others who share their diagnosis.

The latest estimate of autism prevalence suggests the condition is more common than previously thought, and highlights the complexity in the seemingly simple statistic.

Nearly 9 out of 10 parents of children with autism turn to unproven, and possibly risky, therapies.

Autism is not the only brain disorder that is more common in one sex than in the other.