Research suggests that 50–70 percent of autistic children also meet the criteria for ADHD.
Understanding the Differences Between ADHD and Autism
ADHD and ASD share a lot of surface-level behaviors, which is part of why they’re easy to conflate — and why getting the distinction right matters for treatment.
Core Features of Autism
Autism affects how a child experiences and interacts with the world. Social communication, sensory processing, transitions, and routines are the areas where things tend to get hard. A child with autism might struggle to read social cues, get overwhelmed by noise or texture, or need things to happen the same way every time.
Core Features of ADHD
ADHD is about attention and impulse control. The brain has a harder time staying focused, filtering out distractions, and putting the brakes on behavior. It’s not a discipline or willpower problem — it’s a regulation problem.
Where They Overlap
Both conditions can:
- Look like defiance
- Affect a child’s ability to function in structured environments
- Make transitions, emotional regulation, and social interaction hard
A child with autism might struggle in a classroom because of sensory overload. A child with ADHD might struggle because they can’t regulate impulses.
A child with both is navigating all of it at once.