AuDHD is an informal word for being both autistic and having ADHD. It is not a diagnosis on its own. A child with AuDHD has two diagnoses, autism and ADHD, and the word is a shorthand many families and autistic adults use because the combination brings its own mix of needs.

How common is it for autistic children to have ADHD?

Very common. Studies vary widely: one large review pooled about 28 percent of autistic people having ADHD, a later review found about 38 percent, and a review of many reviews found figures from 26 to 65 percent. The range reflects different ages, settings and diagnostic methods, but every estimate is far above the rate in the general population.

Can a child be diagnosed with both autism and ADHD?

Yes. Since the DSM-5 was published in 2013, clinicians can diagnose both in the same child. The previous edition did not allow an ADHD diagnosis alongside autism, so many older children and adults were only given one.

Is it autism, ADHD or both?

The two share some signs, such as trouble with attention, social difficulties and big emotions, but the reasons behind them often differ. A full evaluation by a developmental pediatrician, child psychologist or psychiatrist looks at each separately. The ADHD vs autism guide sets the differences out side by side.

Can a child with AuDHD get an IEP?

Yes. A child may qualify under autism, under other health impairment, which is the category that covers ADHD, or under both. What matters is that the IEP addresses every need, including attention and executive function as well as communication and sensory needs.

What helps AuDHD kids at school?

A mix that covers both sides: a predictable schedule and warnings before changes, sensory supports, short tasks with built-in movement breaks, visual checklists, and one clear instruction at a time. Many need both the structure autism asks for and the novelty ADHD craves, so a routine with choices inside it often works well.

Autism and ADHD (AuDHD) in Children: A Parent's Guide

Autism and ADHD often come together, called AuDHD. How common it is, how it looks in kids, how it is diagnosed, and what helps at home and at school.

Getting Started|October 30, 2026|5 min read

Updated October 30, 2026

Autism and ADHD often occur together; studies put ADHD in roughly a quarter to over half of autistic people, depending on the study
AuDHD is a community word for having both, not a separate diagnosis
Since 2013 a child can be diagnosed with both; before that, the manual did not allow it
The two can pull in opposite directions, such as needing routine and craving novelty, which is why AuDHD kids can look inconsistent
Support works best when it covers both: predictability and sensory care for autism, plus short tasks, movement and outside structure for ADHD

If your child is autistic and also can't sit still, can't start homework, or loses everything they own, you may be looking at ADHD too. The combination is common enough that families and autistic adults have a word for it: AuDHD.

This guide covers how often the two come together, what it looks like in children, how it is diagnosed, and what helps.

Autism and ADHD at a glance

They often occur together. Studies put ADHD in roughly a quarter to more than half of autistic people.
A child can be diagnosed with both. That has been possible since the DSM-5 in 2013. Before it, the manual did not allow an ADHD diagnosis alongside autism.
AuDHD is not a separate diagnosis. It is a shorthand for having both.
The two can pull in opposite directions, which makes AuDHD kids look inconsistent from one day to the next.
Support has to cover both, or one side keeps undoing the work done on the other.

How common is it?

Very common, though the exact figure depends on the study. A large review in 2019 pooled about 28 percent of autistic people having ADHD. A 2021 review found about 38 percent. A review of many reviews reported figures from 26 to 65 percent. Different ages, settings and ways of diagnosing explain much of the spread.

Every estimate is far above the rate of ADHD in children generally, which is why many clinicians now look for ADHD as a matter of routine once autism is diagnosed, and the other way round.

What AuDHD can look like in a child

Autism and ADHD share some outward signs, such as trouble with attention, difficulty with friendships and big emotional reactions. The reasons underneath are often different, and in AuDHD both sets of reasons are in play.

Some patterns families describe:

Routine and novelty at once. The child needs the day to be predictable, then gets bored with the same thing every day.
Deep focus and no focus. Hours on a favorite topic, and thirty seconds on a worksheet.
Sensory seeking and sensory avoiding. Climbing, crashing and spinning, then melting down at a loud room.
Wanting friends and missing the cues. Rushing into play with energy, then not reading what the other child wants.
Knowing the steps and not starting. The plan is clear, and getting going is the wall.

These pulls are tiring for the child, and they explain why a strategy that worked on Monday can fail on Thursday. The ADHD vs autism guide sets the two side by side so you can see which part of a behavior may come from which.

Girls are often missed for both conditions, because they are more likely to be quietly inattentive than visibly hyperactive and to mask social differences. The signs of autism in girls post covers how that can look.

Getting a diagnosis

A developmental pediatrician, child psychologist or child psychiatrist can evaluate for both. For ADHD, they look for symptoms that started before age 12, have lasted at least six months, and show up in more than one setting, usually home and school. Rating scales from parents and teachers are a standard part of it.

If your child already has an autism diagnosis, ask the clinician directly whether ADHD was assessed. Because the two could not be diagnosed together before 2013, and because the overlap in signs makes one easy to miss, it is a fair question. The autism evaluation guide covers what the process involves.

Treatment and support

For ADHD on its own, the American Academy of Pediatrics recommends behavior support first for preschoolers, and medication alongside behavior support for school-age children, with school supports as part of the plan.

For autistic children, medication helps many, but research has found fewer children respond than in ADHD alone, and side effects such as irritability are more common. That makes a careful start with your child's doctor important.

Day to day, what works tends to cover both sides:

Predictability with room to move. A visual schedule for the shape of the day, with choices inside each block.
Short tasks and visible endings. A timer, a checklist, and a break that comes after a few minutes of work rather than after school.
Movement built in, not saved as a reward. Seating that allows motion, such as a wobble cushion, helps some children stay put.
Sensory care, with a quiet place to recover after a busy stretch.
Help starting. Sitting nearby for the first step, or breaking the first step down until it is small enough to begin.

The AuDHD parenting strategies post goes deeper on home routines, homework and meltdowns.

At school

A child with AuDHD may qualify for an IEP under autism, under other health impairment (the category that covers ADHD), or under both. The IDEA disability categories post explains how the category is chosen. What matters more than the category is that the plan covers every need.

Some children with ADHD and milder autism needs are served by a 504 plan instead. The 504 plan for ADHD post lists accommodations that work in a classroom, and the ADHD IEP goals post shows how to write measurable goals for attention, starting work and staying organized.

Learning support outside school

Many AuDHD children learn best one-to-one, with short steps, movement breaks and a tutor who adjusts in the moment. Spectrum Unlocked offers online tutoring for ADHD and online tutoring for autistic children, with tutors who plan for both.

This guide covers the basics. But every child is different.

Beacon learns about YOUR child and gives guidance specific to them.

What Would Beacon Say?

"What should I focus on first with my child?"

If you asked Beacon "My child was just diagnosed, what do I do first?" it would look at your child's age, communication style, and biggest challenges, and give you a specific starting point. Not a generic list.

Talk to Beacon

Spectrum Unlocked Editorial Team

Editorial Team

The Spectrum Unlocked editorial team combines lived experience as autism parents with research-backed guidance to create resources families can trust.

Parent-led editorial team

Frequently Asked Questions

What is AuDHD?: AuDHD is an informal word for being both autistic and having ADHD. It is not a diagnosis on its own. A child with AuDHD has two diagnoses, autism and ADHD, and the word is a shorthand many families and autistic adults use because the combination brings its own mix of needs.
How common is it for autistic children to have ADHD?: Very common. Studies vary widely: one large review pooled about 28 percent of autistic people having ADHD, a later review found about 38 percent, and a review of many reviews found figures from 26 to 65 percent. The range reflects different ages, settings and diagnostic methods, but every estimate is far above the rate in the general population.
Can a child be diagnosed with both autism and ADHD?: Yes. Since the DSM-5 was published in 2013, clinicians can diagnose both in the same child. The previous edition did not allow an ADHD diagnosis alongside autism, so many older children and adults were only given one.
Is it autism, ADHD or both?: The two share some signs, such as trouble with attention, social difficulties and big emotions, but the reasons behind them often differ. A full evaluation by a developmental pediatrician, child psychologist or psychiatrist looks at each separately. The ADHD vs autism guide sets the differences out side by side.
Does ADHD medication work for autistic children?: It helps many autistic children with ADHD, but research has found that fewer respond than in children with ADHD alone, and side effects such as irritability are more common. Decisions about medication belong with your child's doctor, who can start low and watch closely.
Can a child with AuDHD get an IEP?: Yes. A child may qualify under autism, under other health impairment, which is the category that covers ADHD, or under both. What matters is that the IEP addresses every need, including attention and executive function as well as communication and sensory needs.
What helps AuDHD kids at school?: A mix that covers both sides: a predictable schedule and warnings before changes, sensory supports, short tasks with built-in movement breaks, visual checklists, and one clear instruction at a time. Many need both the structure autism asks for and the novelty ADHD craves, so a routine with choices inside it often works well.