Bandai Choi
MSSc, MAPS, MCCLP, AFHKPS | Clinical Psychologist
Breathe-n-Smile Psychology, Essendon North, Footscray and telehealth
TL;DR
- AuDHD is an informal term people may use when autism and ADHD both seem relevant. It is not a separate diagnosis.
- Someone can want predictability and still find routines hard to keep. They may seek stimulation and also become overloaded.
- A careful assessment considers development, daily impact and other explanations. It does not rely on one trait list.
AuDHD is an informal term for the co-occurrence of autism and ADHD. The two conditions remain separate diagnoses, but discussing them together can help some adults describe needs that otherwise seem contradictory. Identifying with the term can be a useful starting point. It does not itself establish either diagnosis.
What AuDHD means
Autism and ADHD can co-occur. Both can affect attention, routines, sensory experience, communication and daily organisation, although each person has their own pattern. A combined term can be useful in conversation because separating every experience into one category or the other is not always possible or helpful.
There are also many other reasons a person may struggle with focus, energy, social confidence or routine. Sleep difficulties, anxiety, depression, trauma, learning differences and sustained stress can matter. This is why an assessment looks at the broader picture, including development and day-to-day functioning.
Why needs can seem to clash
Some adults describe a pull between predictability and novelty. A clear routine may feel calming, while remembering the steps or repeating them can remain difficult. A new idea may feel energising, then the change or sensory demand around it may become tiring.
The same can be true of attention. An absorbing interest may hold attention for a long time, while beginning a routine task or moving to the next activity feels hard. That experience is not proof of a particular diagnosis. It can still offer useful information about the conditions that make a day easier or harder.
Look for conditions, not character flaws. “I start more easily when the first step is visible and the room is quiet” is more useful than labelling yourself lazy, inconsistent or unmotivated.
Map your own pattern
A short personal record can make repeated patterns easier to notice. Keep it practical: what was happening, what made the situation harder, what helped, and how much recovery time was needed. There is no need to turn this into a detailed symptom diary.
- Notice sensory and social demands, including noise, interruptions and uncertainty.
- Notice what supports task starting, such as interest, a clear cue, another person or a reduced first step.
- Notice what makes transitions more manageable, including advance warning and time to decompress.
For a focused discussion of attention and transitions, see our article on monotropism and autistic task switching. For a description of the common terms “autistic inertia” and “ADHD task paralysis”, see the separate autistic inertia and ADHD task paralysis guide.
Assessment and support
An adult autism or AuDHD assessment may be worth discussing when long-standing patterns affect work, study, relationships, self-care or wellbeing. The exact process depends on the referral question and available history. A report may clarify support needs, but it does not guarantee a particular diagnosis, funding outcome or medical treatment.
Assessment is not the only option. Neurodivergent-affirming therapy may support self-understanding, communication, pacing and realistic changes to daily demands. The aim is not to remove harmless traits or force a person to appear more typical.
Common questions about AuDHD
Is AuDHD an official diagnosis?
No. It is an informal term. Autism and ADHD are assessed and recorded separately when a person meets criteria for both.
Can autistic and ADHD traits look contradictory?
They can. A person may need structure yet struggle to sustain routines, or enjoy novelty while finding rapid change exhausting. Experiences vary by person and situation.
Does relating to AuDHD mean I have both diagnoses?
Not necessarily. Self-recognition can help someone decide what to explore, while formal assessment considers developmental history, current impact and other explanations.
Considering whether autism and ADHD may both be relevant?
Reception can help with a brief administrative question about assessment suitability or appointment availability. Please do not include sensitive clinical history in an ordinary web enquiry.
Make an enquiryReferences
- Australasian ADHD Professionals Association. Co-occurring conditions and differential diagnosis.
- Autism CRC. National Guideline for the Assessment and Diagnosis of Autism in Australia.
- Rosello B, et al. Systematic review of cognitive, social and behavioural features in co-occurring autism and ADHD. Autism. 2022. Read the article.
General information only. It does not replace individual psychological or medical advice.