Autism spectrum disorder (ASD) is a lifelong neurodevelopmental condition involving differences in social communication and interaction alongside restricted or repetitive patterns of behavior, interests or activities. Sensory differences are also common, but autism does not look the same in every person.[1]
This guide follows the questions that often arise after someone notices developmental differences: what to look for, how screening and diagnostic assessment work, what to expect afterward, and how support can help at home, school and in everyday life. It also explains sensory overload, meltdowns, shutdowns and stimming without treating them as interchangeable. For a shorter introduction to the meaning of autism and the idea of a spectrum, see What Is Autism Spectrum Disorder? A Clear Overview.

