You relate to ADHD content. You also relate to autism content. But neither one quite captures what your experience actually feels like, and the parts that don’t fit are the parts that often matter most.
AuDHD is the term the neurodivergent community uses for the experience of being both autistic and having ADHD. It’s not a formal clinical diagnosis in the DSM-5 or ICD-11; it’s a way of naming something that a lot of people have been living with for years without language for it. Research is increasingly catching up to what the community has been saying for some time, which is that autism and ADHD often coexist, and the combination creates an experience that isn’t fully described by either condition on its own.
This article covers what AuDHD means, how it tends to show up in adult life, why it’s so commonly missed (especially in women and late-diagnosed adults), and what support can look like.
This article is general information and isn’t a substitute for individualised clinical advice. If anything here resonates strongly, working with a clinician who understands both conditions is the next step worth considering.
What Is AuDHD?
The Basics
AuDHD describes the experience of being both autistic and having ADHD at the same time. Not one or the other, and not one followed by the other; both, simultaneously, shaping how a person processes the world.
The co-occurrence of these conditions is more common than the older clinical models suggested. Recent research indicates that a significant proportion of autistic people also meet diagnostic criteria for ADHD, and a significant proportion of people with ADHD have meaningful autistic traits. Some estimates suggest up to 80% of people who meet full criteria for one condition have substantial traits (though not always full diagnostic-level traits) of the other. The point isn’t the exact percentage; it’s that the overlap is far more common than most people realise, and treating the two conditions as separate or mutually exclusive misses many people.
Why This Wasn’t Recognised Until Recently
Before 2013, when the DSM-5 was published, clinicians weren’t permitted to diagnose autism and ADHD in the same person. The diagnostic manual treated them as mutually exclusive. That single rule shaped decades of clinical training, research, and assessment practice. Many adults who would now be recognised as AuDHD were diagnosed with one condition and not the other, or had their second condition’s traits misattributed to anxiety, depression, personality factors, or simply “being a complex case.”
The change in 2013 opened the door clinically, but training and assessment practices haven’t caught up uniformly. A lot of practitioners working today were trained in the older model, and updated dual-assessment protocols are still becoming standard rather than universal.
AuDHD as Its Own Experience
One of the most important things to understand about AuDHD is that it isn’t simply autism plus ADHD running in parallel. The two neurotypes interact, and that interaction often creates something distinct from either condition on its own. The traits can amplify each other in some areas, mask each other in others, and pull in opposite directions in ways that can feel genuinely confusing to live with from the inside, let alone explain to other people.
How AuDHD Shows Up
The Push and Pull of Competing Needs
A lot of the AuDHD experience involves holding internal tensions that don’t have a tidy resolution. Craving routine and getting bored by it. Wanting deep connection and being drained by social contact. Needing structure to function and struggling to maintain the structure you need. Hyperfocus that locks in for hours, followed by attention that scatters without warning.
These aren’t contradictions to fix or symptoms to manage. They’re what it looks like when two neurotypes coexist in one nervous system, each with its own needs and rhythms, often pulling in different directions at the same moment.
Masking and Compensation
This is where AuDHD often becomes invisible, particularly to clinicians and particularly in adults.
ADHD traits like sociability, quick thinking, and verbal impulsivity can mask autistic traits, making someone look more socially fluent and confident than the internal experience reflects. In the other direction, autistic structure, routine, and rule-following can compensate for ADHD disorganisation, creating a person who appears to be coping well externally, while the internal cost of holding it together is significant.
Masking is the more common reason AuDHD is missed in women specifically. A lifetime of learning to perform expected social behaviour, manage sensory needs quietly, and deliver on what’s expected can produce someone who looks like they’re managing while quietly running out of capacity.
Sensory Experience and Regulation
The sensory layer of AuDHD often pulls in two directions at once. Autistic sensory sensitivities can sit alongside ADHD’s tendency toward sensory-seeking, which can mean simultaneously needing less stimulation and craving more, sometimes within the same hour.
Emotional regulation often draws from both neurotypes, too: the intensity and rapid shifts are more associated with ADHD, alongside the deeper processing and slower recovery time more associated with autism. Burnout tends to build faster in AuDHD than in either condition alone, because the nervous system is managing more on multiple fronts simultaneously.
Why AuDHD Is Often Missed
One Diagnosis Hides the Other
Many adults were diagnosed with either ADHD or autism alone, and the second condition went unrecognised. Sometimes its traits were attributed to the diagnosed condition. Sometimes they were explained away by anxiety, depression, trauma, or “personality.” The result is a partial picture that leaves a lot of the actual experience unaddressed.
For undiagnosed autistic women in particular, the path to recognition is often littered with other diagnoses first, some of them only partially accurate or outright incorrect. Many AuDHD women have been diagnosed with bipolar disorder, borderline personality disorder, chronic depression, social anxiety, CPTSD, or some combination, before either autism or ADHD is recognised, let alone both. This isn’t a comment on those conditions when they’re genuinely present; it’s a comment on how often the underlying neurodivergent profile gets missed in the process.
Masking Complicates the Picture Further
People who appear to be managing well, often described in clinical settings as “high-functioning” or “high-masking”, are particularly likely to be overlooked. The very skills that make someone look competent in a brief assessment are often the same skills costing them disproportionately at home, after work, or in private.
Late diagnosis is common. Many AuDHD adults don’t get a clearer picture of their profile until their thirties, forties, or later, often after a period of burnout, a major life transition, or a child’s diagnosis, prompting them to look at their own history.
Clinical Training Is Still Catching Up
A significant portion of practitioners currently in clinical practice were trained under the pre-2013 model, where dual diagnosis wasn’t possible. Even those trained more recently haven’t necessarily had access to comprehensive AuDHD-specific training. This is particularly the case in psychiatry, where many practitioners conducting ADHD or psychiatric assessments haven’t completed training in identifying autistic traits clinically, and aren’t fully aware of the impact undiagnosed autism has on adult presentation. Assessment practices are changing (for the better), but unevenly, which means where you go for an assessment makes a real difference to whether the full picture is seen.
Getting an AuDHD Assessment
What a Dual Assessment Involves
A genuine AuDHD assessment is a comprehensive evaluation against both autism and ADHD criteria, conducted by clinicians who are experienced in how the two conditions present together (including how they mask each other). A thorough assessment also evaluates other differential diagnostic mental health factors that may be contributing to the picture, so the full clinical context is understood, rather than just one piece of it. It isn’t simply screening for one condition and ticking the other if there’s time at the end.
Assessing for both matters because the full picture changes how support is designed. Strategies that work well for ADHD alone can clash with autistic needs. Approaches that suit autism in isolation can feel constraining when ADHD is also part of the picture. Knowing what you’re actually working with makes it possible to build support that fits.
Self-Identification and Formal Assessment
Self-identification is valid and is increasingly common in the neurodivergent community, particularly among adults whose diagnostic options were limited or whose previous assessments missed the full picture. It’s a reasonable starting point, especially when formal assessment isn’t immediately accessible.
A formal assessment can offer clarity, language, and access to funding and support pathways that self-identification doesn’t. For some people, that matters significantly; for others, less so. Either path is legitimate. If a formal assessment is the right next step, our assessment services are conducted by clinicians who assess for both conditions together, with adult presentations and masking patterns specifically in mind.
Living With AuDHD
Understanding Your Own Profile
There isn’t a single AuDHD experience. The mix of traits, needs, strengths, and pressure points varies meaningfully from person to person, and what’s most present can shift across different periods of life. The aim isn’t to manage symptoms into compliance; it’s to understand how your particular brain and nervous system actually work, and build a life that accounts for that rather than fights it.
What Tends to Help
Working with your energy cycles rather than against them. Building flexible routines that provide structure without becoming rigid. Finding sensory and social environments that support regulation rather than constantly draining it. Working with practitioners who understand how both conditions interact, rather than treating one and ignoring the other.
What helps day to day is often less about productivity strategies and more about reducing the cognitive and sensory load your nervous system is carrying, so that more capacity is available for the parts of your life that actually matter to you.
Support That Fits
Support for AuDHD adults works best when it accounts for the full picture rather than addressing one condition in isolation. At The Divergent Edge, our therapeutic ADHD coaching and counselling services are delivered by clinicians experienced in AuDHD presentations, including the patterns that often get missed in women and late-diagnosed adults. For people whose work life is the main pressure point, ADHD coaching at work addresses the specific friction that comes with operating in environments that weren’t designed for either neurotype, let alone both at once.
Where to From Here
If this article described something you’ve been trying to put words to for a while, that’s worth paying attention to. Recognition of your own profile, with or without a formal diagnosis, often changes the questions you can ask about your life and the kind of support that becomes possible.
You don’t need to have it all figured out before reaching out. A short message describing what you’re noticing is enough.
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Frequently Asked Questions
Is AuDHD an official diagnosis?
Not in the formal sense. AuDHD isn’t a standalone diagnostic category in the DSM-5 or ICD-11. What’s possible (and increasingly common) is being diagnosed with both autism and ADHD as separate but co-occurring conditions. AuDHD is the term the community uses to describe the lived experience of having both, which is often more than the sum of its parts.
Can you be diagnosed with both autism and ADHD?
Yes. Since 2013, when the DSM-5 was published, clinicians have been able to diagnose both conditions in the same person. Before that, the two diagnoses were treated as mutually exclusive, which is a significant part of why so many adults missed out on accurate recognition for so long.
What’s the difference between AuDHD and just having ADHD or autism?
AuDHD isn’t simply autism and ADHD running side by side. The two neurotypes interact, and that interaction can amplify some traits, mask others, and create internal tensions (like craving routine and getting bored by it, or wanting connection and being drained by it) that don’t show up the same way in either condition alone. People often describe AuDHD as feeling like both at once, which makes it a distinct experience to live with and support.
What does AuDHD feel like for adults?
The experience varies, but common themes include feeling like you don’t fully fit either the autism or ADHD descriptions, holding internal contradictions that don’t resolve neatly, burning out faster than seems reasonable for the workload, and a long history of compensating or masking that’s costing more than it’s giving back. Late-diagnosed adults often describe a sense of finally being able to make sense of patterns that have been there their whole life.
Can I access support for AuDHD through Medicare or NDIS?
Some support pathways are available through Medicare (particularly for the mental health side of AuDHD support, via Mental Health Treatment Plans) and through NDIS for people whose neurodivergent profile meets eligibility criteria. The specifics depend on your circumstances, your diagnosis status, and the practitioners you’re working with. Our fees and funding page outlines what’s possible at TDE specifically.
