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The ASD And ADHD Overlap

Published on 06/24/2025
the asd and adhd overlap

While it’s true that every child with autism spectrum disorder (ASD) is unique, it’s also true that those with ASD may share similar attributes or have overlapping diagnoses. Attention-deficit/hyperactivity disorder (ADHD) is one of these common autism overlaps.

Currently, meta-analyses of the most recent studies show that the percentage of children diagnosed with ADHD who meet criteria for ASD ranges from 13% to 22%. However, further research is needed on this topic, and many researchers and behavioral therapists believe the percentage of children with overlapping ASD and ADHD is higher than that.

The frequency of this overlap is substantial enough that physicians and behavioral therapists use the term AuDHD to represent when these are co-occurring disorders.

Neurodivergent Overlaps & AuDHD: Where Autism Meets Attention-Deficit Disorder

While some traits or behaviors of both ADHD and ASD are similar, others are very different, which can pose a strong tension in a child or adult with AuDHD. Another thing worth noting is that many children with ADHD display clinically high numbers of autistic traits (PubMed).

Similarities Between ASD And ADHD 

Some of the characteristics or traits often shared by those with autism and those with ADHD include:

  • Hyperactivity.
  • Impulsive behaviors.
  • Trouble falling and staying asleep.
  • Difficulty focusing on tasks (unless it’s a particular area of interest—more on that below).
  • Quick to be distracted.
  • Emotional dysregulation.
  • Hyperfocus and intense interests (although kids with ADHD may move through different “passions” in a short amount of time). 
  • In some cases, ADHD is also linked to delayed speech or deficits in social skills. 

Differences Between ASD And ADHD

Despite many of the things these disorders have in common in terms of how they show up in children, there are also several key differences. Some of the most striking are that children who are diagnosed exclusively with ADHD, without the autism overlap, will not experience:

  • Repetitive behaviors or echolalia.
  • Communication challenges or being nonverbal.
  • Significant social skills deficits.
  • Difficulty expressing their feelings or opinions (children with ADHD often talk excessively, share their feelings with anyone who will listen, and often want to have the last word).
  • Struggle with eye contact or reading faces (children with ADHD may be extra-sensitive to facial expressions, particularly angry or upset faces).
  • Intense emotional dysregulation, often leading to complete meltdowns or self-harm.
  • Having a hard time with imaginative play, humor, or sarcasm.

These are just some of the ways a child with ASD will be different than a child who has ADHD without any clinically significant signs of ASD.

High-Level Assessment & Diagnosis Are Essential

If you’re at the beginning stages of noticing your child may have ASD or ADHD, or a teacher/caregiver has mentioned the possibility, a high-quality assessment and diagnosis are essential for getting your child—and your family—the help and tools they need. 

Schedule an appointment with your pediatrician, who may refer you to a pediatric psychologist or neurologist for further evaluation. If your child is diagnosed with AuDHD, there are so many resources available to support your next steps. 

Tips For Supporting Children With AuDHD And Their Families

While a neurodivergent diagnosis is also received with understandable grief and “why us,” our clients often talk about the sense of relief they felt knowing that it wasn’t just in their imagination. The good news is that you are not alone. 

The path forward is filled with so much light, laughter, and community once you know what you’re facing; now you can find the right tools, tips, therapies, etc., to help your child thrive at school, with friends, in public, and within the daily household rhythm.

Learn more about the autism support resources in your area

Your pediatrician should be able to connect you with the autism support resources in your area. If not, it may be time to interview new pediatricians or contact your health insurance provider for referrals to pediatricians who specialize in caring for neurodivergent children.

Connecting with parent and sibling support groups provides invaluable insights from those walking the same path you are. The ASD/ADHD community is passionate about helping each other, sharing resources, providing ideas about what’s worked (or not) for their families, and so on. 

Connect with a local ABA therapy center

Applied behavioral analysis therapy, or ABA therapy, specifically supports children with ASD as well as those with ADHD. This therapy modality utilizes information gathered from parents, caregivers, clinicians, and teachers while focusing primarily on our observations, assessments, and analysis. 

We like to say that knowing a child with ASD (and ADHD) means you know one child with that diagnosis. Despite similar traits or behavioral tendencies, each child is unique, and we want to create therapeutic exercises, practices, and tools that are personalized to each client and their family.

By connecting with a local ABA therapist, you’ll receive an actionable plan that incorporates practical therapies and exercises for your home, in the classroom, and in social settings. We’ll continue to look at historic and current benchmarks and adjust the therapy plan accordingly. 

Focus on the daily routine

Creating a structured routine can be a tremendous help in staying on task. Visual cues, like image-based charts, support this process, especially for non-verbal children or children who haven’t learned to read yet. The PECS card system is terrific for this, but you can also create your own with paper and markers. Your ABA therapist can help you implement a daily plan (and related visual cues) specific to your household’s morning, daytime, evening, and weekend routines. We can also help you with strategies for taking trips or going on vacation.

  • Break daily tasks into manageable steps.
  • Use a timer for each one (many children with ADHD or ASD love timers and find they help them stay on task).
  • Vocal transition warnings are helpful (“Two more minutes in the bath, and then it’s time for PJs…”). 

Of course, the nature of life is that the routine can fall apart. However, having a routine that aligns with the same types of things that happen at daycare, preschool, and school (using similar language) helps children understand what they’re supposed to do when. Over time, you will also be able to build in lessons about how life can be unpredictable and the tools that can be used to navigate that stress.

Focus on emotional regulation support

Most parents quickly learn that teaching or modeling emotional regulation is a challenge, as it begins with them. If you’re hiding or faking your own emotional landscape, your child senses that, and no amount of talking will help (it only worsens things). 

Some of the most effective emotional regulation strategies include things like:

  • Breathing exercises. 
  • Slow stretches or gentle body movements that help them reconnect with their physical bodies and feel calmer.
  • Using tactile and other soothing tools (toys, quiet fidgets, etc.).
  • Creating a sensory table or similar “calming station” somewhere in the house and/or patio area (some kids may prefer to be outside in nature, where it’s quieter than a busy household). 
  • Teaching them how to take a respectful, personal “time out” for some quiet.

Practice emotional regulation as a family and household, learning which tools and strategies work for each person and then supporting one another in implementing them. When you determine what works best for your child (or they’re old enough to choose their preferred emotional regulation tools), share that information with teachers, caregivers, and their friends’ parents so it can be applied consistently across all settings.

Build their social skills and their ability to play with others

The more stress and anxiety a child feels, the more heightened their ASD/ADHD tendencies may become. Social stress is one of the most powerful for young children, adolescents, and teens because everyone wants to fit in. Or, in the case that your child doesn’t care about social relationships or “fitting in,” then there is room to teach that sometimes we have to work with others in a group.

Building your child’s social skills can go a long way toward helping them feel more comfortable at school, on the playground, or on playdates.

  • There are several things you can do as a parent—and as a family—to help your child with ASD learn how to converse, play, and have fun with their peers.
  • Role-play at home (younger children may like the book The Polite Elephant, which does a very sweet and simple job of explaining common social courtesies when playing with others or when out in public). 
  • Educate other children’s parents (and the children if they’re old enough) about how to support your child for a successful playdate—and what they might expect if there’s a stressful moment.
  • As they get older, your child may also need some tips on understanding humor and how it works in friendly, social relationships.

The more children experience “good days” in the classroom and with their peers, the less prone they are to emotional dysregulation and high-stress impulsivity.

Autism Response Team Works With AuDHD Children & Families

Would you like to continue fostering your child’s sense of success and well-being at home and at school? Or, are you ready for a more peaceful and less disruptive daily life? The Autism Response Team is here to help.

Schedule a consultation so we can get to know you and your child and begin implementing the right supports and strategies to help them thrive.

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