What is autism spectrum disorder?

    Researchedby:
    Louie Neri, Meredith Yetter

    Fact-checked

    by:

    Nick Milazzo
    Last Updated: October 25, 2023

    Autism spectrum disorder (ASD) is a complex neurodevelopmental condition that begins in early childhood. It’s characterized by difficulty with social communication and interaction, and patterns of repetitive behaviors, interests, and activities.[1]