Autism Spectrum Disorder (ASD) Symptoms & Causes

Autism (autism spectrum disorder, or ASD) is a difference in how your child's brain works that shapes their behaviors, interests, social interactions and ways of communicating. ASD falls under the umbrella of neurodevelopmental disorders. These are conditions affecting brain function that become noticeable early in life — often before or soon after starting school. About 1 in 31 kids in ...