AuDHD is a community-coined term describing the co-occurrence of ADHD and autism in the same person. It is not a separate clinical diagnosis but refers to a well-documented overlap — research suggests 50 to 70 per cent of autistic individuals also meet criteria for ADHD. The combined profile produces qualitatively different experiences from either condition alone.

Can you have both ADHD and autism at the same time?

Yes. Since 2013, the DSM-5 has permitted dual diagnosis of ADHD and autism spectrum condition. Before that, clinicians were required to choose one or the other, which led to decades of missed or incomplete diagnoses. Co-occurrence is now recognised as common rather than exceptional.

What are the signs of AuDHD in adults?

Common signs include: extreme hyperfocus on special interests combined with severe inattention elsewhere, needing routine but being unable to sustain it, alternating between social enthusiasm and withdrawal, building organisational systems then abandoning them, and experiencing both sensory-seeking and sensory overload. The hallmark is feeling internally contradictory.

How is AuDHD diagnosed?

AuDHD is diagnosed through comprehensive assessment for both ADHD and autism, ideally conducted simultaneously rather than sequentially. This typically includes developmental history, standardised screening tools for both conditions (such as DIVA for ADHD and ADOS-2 or RAADS-R for autism), and consideration of how each condition may mask the presentation of the other.

What careers are best for people with AuDHD?

Careers that combine deep engagement with structured autonomy tend to work well: software development, research, data analysis, technical writing, creative fields with deadlines, and specialist consulting. The key factors are intellectual stimulation, clear expectations, control over working environment, and minimal requirement for sustained social performance.

Is AuDHD an official diagnosis?

AuDHD is not a formal diagnostic term in the DSM-5-TR or ICD-11. It is a community descriptor for the co-occurrence of ADHD and autism, which are each diagnosed separately. However, the term is increasingly used in clinical and research contexts because the combined presentation is qualitatively different from either condition alone and requires distinct management approaches.

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AuDHD Explained: When You Have Both ADHD and Autism

Peter Kolomiets

|April 11, 2026|10 min read

AuDHD Explained: When You Have Both ADHD and Autism

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References

Leitner, Y. (2014). Co-occurrence of Autism Spectrum Disorder and Attention-Deficit/Hyperactivity Disorder
Rommelse, N.N.J., Franke, B., Geurts, H.M., Hartman, C.A., Buitelaar, J.K. (2010). A New Perspective on the Association Between ADHD and ASD
Antshel, K.M., Zhang-James, Y., Wagner, K.E., Ledesma, A., Faraone, S.V. (2016). ADHD, ASD, and Their Overlap: Clinical Implications
American Psychiatric Association (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed.)
Berenguer, C., Rosello, B., Colomer, C., Miranda, A. (2018). The Pattern of Neurocognitive Functioning in ADHD, ASD, and Co-occurring ADHD+ASD

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AuDHD Explained: When You Have Both ADHD and Autism

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