Autistic people who are hyperactive or have difficulty controlling their own impulses are the most likely to show ongoing self-injury.

Adults with autism vary enormously in their quality of life, and two factors may explain most of this variation.

Developmental pediatrician Watfa Al-Mamari is building an autism program in Oman from the ground up.

A new study has found that 0.2 percent of children in Oman are on the autism spectrum — an estimate about 15 times higher than the previous one.

Older men and women are more likely than young ones to have a child with autism, but this connection is not straightforward.

People with autism are at increased odds of having other psychiatric conditions, such as anxiety and depression, but the links can be counterintuitive.

The first rigorous estimate of autism in Catalonia, Spain, has found a prevalence on par with that in the United States; an independent study in Iran, meanwhile, has found a prevalence that lags far behind.

Autism is unusually common among people with congenital blindness, in part because the ability to see drives much of brain development.

Eight mental health conditions occur unusually often in autistic people, a new analysis suggests.

More than two-thirds of toddlers flagged for autism do not get assessed for the condition by specialists.