Autism spectrum disorder (ASD), or simply autism, is a neurodevelopmental disorder characterized by repetitive, restricted, and inflexible patterns of behavior, interests, and activities; deficits in social communication and social interaction; and the presence of high or low sensory sensitivity. A formal diagnosis requires that symptoms cause significant impairment in multiple functional domains, in addition to being atypical or excessive for the person's age and sociocultural context.
https://en.wikipedia.org/wiki/Autism