ASD, ADHD or Both? Understanding Overlapping Traits in Children

Autism and ADHD are different neurodevelopmental conditions, but they can overlap.

Some children may have traits of autism, ADHD, or both. For parents, this can feel confusing. A child may be socially motivated but impulsive in friendships. Another child may be very focused on interests, sensitive to change and also highly distractible. Some children may appear active and impulsive, while also finding social communication, flexibility or sensory experiences difficult.

Research has shown that ADHD commonly occurs alongside autism, and that children with both may have more complex profiles across cognition, behaviour, adaptive skills and social functioning.

This is why a careful assessment is important. If we only look for ADHD, we may miss autism. If we only look for autism, we may miss ADHD. A comprehensive assessment considers developmental history, school information, parent observations, questionnaires, direct assessment and how the child functions in daily life.

Recent research also highlights that autism screening and diagnostic tools can perform differently when children also have ADHD, meaning clinicians need to interpret results carefully and not rely on one measure alone.

Understanding whether a child has ASD, ADHD or both can help families and schools provide the right support.

For example, ADHD supports may focus on attention, routines, emotional regulation and executive functioning. Autism supports may focus more on communication, predictability, sensory needs, social understanding and flexibility. Many children need a combination of both.

The most important question is not simply “Which label fits?” It is “What does this child need to feel understood, supported and successful?”