Autistic children and adults report having poor physical and mental health and quality of life compared with the general population.

Too few students with autism or intellectual disabilities have sex education. That omission may prevent them from forming fulfilling romantic relationships, and it may make them targets of abuse.

Autistic children who have behavioral problems tend to have an enlarged right amygdala, and in girls the size is associated with the severity of certain behaviors.

Girls with autism are diagnosed 1.5 years later, on average, than boys with the condition, perhaps because they tend to have stronger verbal skills.

Autism may stem from a different — and larger — set of genetic mutations in women than it does in men.

A new resource that details the ages at which children attain milestones such as speaking and walking could help clinicians spot autism sooner.

Here are seven Spectrum stories from this year that deserve a close look.

Multiple independent studies are revealing evidence suggesting that sex steroids are important in autism.

Misinformation about autistic women and sex is common in the scientific community. A study published this year is a case in point.

A new autism mouse model carries the same mutation in a gene called ADNP that is seen in autistic people.