Signs and symptoms
... Autism is one of five conditions referred to as autism spectrum disorders or pervasive developmental disorders (PDD). These five conditions have different signs: Autism. Children with autism exhibit a...

Causes
... Autism has no single, identifiable cause. The disorder seems to be caused by abnormalities in several regions of the brain. Neurons in these regions appear to be smaller than normal and have stunted c...

When to seek medical advice
... Babies develop at their own pace, and many don''t stick to the exact timelines found in parenting books. But children with autism usually show some signs of delayed development by 18 months. If you su...

Screening and diagnosis
... Your child''s doctor will look for signs of developmental delays at regular checkups. If your child shows some signs of autism, you may be referred to a doctor who specializes in treating children wit...