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AuDHD—being both autistic and ADHD—is far more common than most people realize.

Diagnostic overshadowing can cause one condition to mask the other, delaying accurate recognition by years.

Seeing AuDHD as an interaction, not just a sum of parts, changes how we support self-understanding.

For many adults, that almost-but-not-quite feeling is the first clue that neither label tells the whole story.

What if ADHD captures the restless, scattered edges of your experience, yet quieter, more unyielding traits remain unexplained? Or what if autism deeply resonates with your sensory world and relational patterns, but other parts of your inner life—impulsive, understimulated, chaotically adaptive—feel confusing and unnamed?

For a growing number of adults, that almost-but-not-quite feeling is leading somewhere. More and more people are recognizing that their neurology doesn't fit neatly into one category, and a community-coined term has been steadily rising to meet that recognition.

AuDHD refers to people who are both autistic and ADHD. It's not a formal diagnosis, and you won't find it in the DSM, but it captures something clinical language often misses: how these two neurologies interact.

The co-occurrence is far more common than many realize. Across clinical and population-based studies, estimates suggest that roughly 50 to 70 percent of autistic people also meet criteria for ADHD, and that about 20 to 65 percent of people diagnosed with ADHD show clinically significant autistic traits, depending on sample and methodology. Until the DSM-5 was published in 2013, clinicians were not formally allowed to diagnose both together, which helps explain why so many people were only ever partially seen.

For my upcoming book, AuDHD Unlocked, I surveyed AuDHD adults about their lived experience. Again and again, people described years of feeling "half-right" in ADHD spaces and "half-right" in autistic ones before encountering this word. Relief, validation, and a release from shame came up consistently. There was a sense of:

I make sense. I'm not broken. There is a name for this.

I make sense. I'm not broken. There is a name for this.

The Interaction, Not Just the Sum

People who are AuDHD don't........

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