Autism and ADHD: what if you have both?
Maybe you have an autism diagnosis and also recognize yourself in ADHD. Or the other way around. Or you're wondering how those two can even go together, because they sometimes seem like opposites. Yet the combination is surprisingly common — and if you have both, it can explain a lot.
For a long time, people thought autism and ADHD couldn't occur together. That idea is now outdated. Research shows that around 50 to 70 percent of people with autism also have ADHD traits — and vice versa. The term you'll often see online is "AuDHD", though it's not used officially everywhere.
But what does it actually mean when your brain works both ways? What does that look like in practice? And why does it get missed so often?
How autism and ADHD go together
Autism and ADHD share a few things: both have to do with how your brain processes information, how your attention works, and how you deal with stimuli. But the way they do this differs.
- need for predictability and structure
- deep focus on specific interests
- difficulty with unexpected changes
- sensitivity to sensory stimuli
- preference for familiar patterns
- difficulty holding attention (unless something is really engaging)
- impulsivity: acting before thinking
- need for variety and new stimulation
- forgetfulness and difficulty planning
- inner restlessness or feeling 'always on'
Looking at these lists, you might understand why people thought they couldn't coexist. Structure versus chaos, focus versus distraction. But in practice, it's more nuanced.
How does it feel when you have both?
People with both autism and ADHD often describe it as a kind of internal tug-of-war. One part of you wants structure, calm, and predictability. Another part wants movement, variety, and new things.
That might look like:
- You make a tight schedule but can't stick to it.
- You want rest but get restless sitting still.
- You get focused on something but still get distracted by small things.
- You have trouble starting and trouble stopping.
- Your craving for new stimulation clashes with your need for familiarity.
It's not so much "one or the other" — more of a constant dance between two systems that don't always want the same thing.
One reason the combination often gets recognized late is that they can mask each other. ADHD impulsivity makes it easier to spontaneously join in — which hides the autism. And the autistic need for structure can look like you have everything under control — which hides the ADHD.
So you fit the picture of "normal" better than you actually feel.
Where they can clash
In some situations, autism and ADHD don't work well together. Some examples:
- You need structure, but your ADHD brain rebels against routines.
- You want to finish something (autism) but keep getting distracted (ADHD).
- You're sensitive to stimuli but also seek stimulation.
- You overthink things (autism) but act impulsively (ADHD).
- You want to be prepared but keep forgetting things.
That tension can be exhausting. You're constantly trying to satisfy two systems that need different things.
Where they can help each other
Sometimes they actually work well together:
- ADHD energy can help you try new things that your autistic side might otherwise avoid.
- Autistic focus can help you push through once you're into something — even when ADHD would normally give up.
- You can become really good at things that truly interest you, because you can go deep and stay broad.
The point is: having both isn't necessarily worse. It's mostly different — and it helps to understand that.
Why it often gets missed
Many people get one diagnosis first and the other years later. Or they only get one while the other goes unnoticed. There are a few reasons:
- In the past you officially couldn't have both diagnoses — that only changed in 2013.
- Professionals specialized in one don't always recognize the other.
- In women and people who compensate a lot, ADHD often gets missed.
- The traits overlap, making it confusing to see what's what.
Already have an autism diagnosis and recognize many ADHD traits (or vice versa)? It might be worth discussing with someone experienced in both. Not necessarily to get a label, but to better understand how your brain works — and what you need.
What helps when you have both?
There's no standard solution. But here are some things people with AuDHD often mention:
- Flexible structure: fixed anchors but room for deviation.
- Knowing which part of your brain is 'louder' today.
- Not trying to fix everything at once.
- Allowing movement or stimulation without overstimulating yourself.
- Self-compassion: your brain has two operating systems — that's hard.
It's not about managing both perfectly. More about learning which side needs priority at which moment — and not judging yourself when that's difficult.
Finally
If you have both autism and ADHD, you're not doubly broken. You have a brain that works differently from average in multiple ways. That can be hard, especially if you didn't know for a long time. But it can also be explanatory — and sometimes even a relief.
The goal isn't to squeeze yourself into two boxes. More to understand why some advice doesn't work, why you sometimes have conflicting needs, and what you specifically need to function in a way that fits you.