Where did the term autism come from, and how has knowledge about autism changed over the years? WebMD gives you the background you need to have a better understanding of the history, types, diagnosis, and treatment of autism.
WebMD explains what causes Rett syndrome, a rare form of autism that affects only girls. Plus, here you'll learn about the symptoms and treatments as well as what to expect if your child has Rett syndrome.
Asperger's syndrome is a developmental condition in which people have difficulties understanding how to interact socially. A diagnosis is best made with input from parents, doctors, teachers, and other caregivers who know or who have observed the child.