Table of Contents
- What Is AuDHD?
- Why ADHD and Autism So Frequently Co-Occur
- The Signs That Get Missed
- How AuDHD Is Diagnosed
- What Happens After a Diagnosis
- Getting Evaluated Without a Two-Year Wait
- FAQs
You've done the research. You've read the Reddit threads at midnight, watched the TikToks, taken the quizzes. Something about both ADHD and autism resonates with you in a way that neither one alone quite explains.
That feeling makes sense. There's a name for it: AuDHD.
Here's what it actually is, why it gets missed so often, what a real diagnosis involves, and what you can do next.
What Is AuDHD?
AuDHD is the informal term for having both ADHD and autism spectrum disorder (ASD) at the same time. It's not a separate clinical diagnosis — both conditions are identified individually, and a person can meet the criteria for each. But the combination creates an experience that's genuinely more than the sum of its parts.
For a long time, clinicians were actually trained not to diagnose both. Older guidelines listed autism as a reason to rule out ADHD. That changed with the DSM-5 in 2013, which formally allowed dual diagnosis. But clinical culture took years to catch up, and plenty of providers still aren't looking for both.
The result: a lot of people are walking around with only half the picture.
Why ADHD and Autism So Frequently Co-Occur
Research consistently shows that ADHD and autism overlap far more than most people expect. Studies suggest that somewhere between 50 and 70 percent of autistic people also have ADHD, and a significant portion of people with ADHD show autistic traits that meet diagnostic thresholds.
Neurologically, the overlap makes sense. Both conditions involve differences in executive function, attention regulation, sensory processing, and social cognition. They share genetic pathways and affect similar brain networks.
But they also pull in opposite directions in ways that create real internal conflict. ADHD pushes toward novelty, impulsivity, and constant stimulation. Autism often pulls toward routine, predictability, and sameness. Living with both can feel like running two competing operating systems at once.
That internal tension is part of why AuDHD is so hard to identify — from the outside, and from the inside.
The Signs That Get Missed
AuDHD doesn't always look the way clinicians expect. Traits can cancel each other out, compensate for each other, or show up in ways that get misread as anxiety, depression, or just personality quirks.
Some common signs that often go unrecognized:
- Intense focus on specific topics that reads as "passion" rather than a restricted interest
- Inconsistent performance — sharp and capable in some contexts, completely overwhelmed in others
- Social exhaustion that gets labeled introversion or anxiety
- Emotional dysregulation that ends up diagnosed as a mood disorder
- Sensory sensitivities dismissed as being "too sensitive"
- Executive function struggles written off as laziness or poor time management
- Rejection sensitive dysphoria (RSD) — intense emotional pain around perceived rejection — that doesn't fit neatly into any other diagnosis
If you've been told your symptoms don't add up, or that you're "too high-functioning" to be autistic or have ADHD, that's a red flag about the evaluation process — not about you.
How Masking Hides the Picture
Masking is the process of suppressing or camouflaging neurodivergent traits to fit in. Most people with AuDHD have been doing it for years — sometimes decades — before they ever seek a diagnosis.
You learn to make eye contact even when it's uncomfortable. You rehearse conversations ahead of time. You borrow social scripts. You push through sensory overload without letting it show. You build workarounds for executive function challenges that look like competence from the outside.
Masking is exhausting, and it's remarkably effective at fooling clinicians. A provider who spends 30 minutes with a polished, articulate person may not look any further. The burnout, the meltdowns at home, the chronic fatigue — none of that shows up in a brief office visit.
This is especially true for people who've spent years practicing how to appear neurotypical.
Why Women and BIPOC Individuals Are Diagnosed Later
The research base for both ADHD and autism was built almost entirely on studies of white boys. The diagnostic criteria, the clinical training, the cultural assumptions — all of it was shaped by that narrow sample.
Women and girls are socialized to mask more intensely from an early age. BIPOC individuals face additional barriers: providers who attribute symptoms to other causes, cultural stigma around mental health, and well-founded distrust of systems built on exclusionary practices.
The outcome is that women and BIPOC individuals are diagnosed with ADHD and autism years — sometimes decades — later than white men presenting the same traits. And when they do seek evaluation, they're more likely to be dismissed or misdiagnosed with anxiety, depression, or borderline personality disorder.
If that's been your experience, it says nothing about whether your symptoms are real. It says a lot about how broken the traditional diagnostic process has been for so many people.
How AuDHD Is Diagnosed
A proper AuDHD diagnosis requires a comprehensive neuropsychological evaluation conducted by a licensed psychologist. This isn't a questionnaire you fill out and get results from in 20 minutes. It's a structured, multi-method assessment.
What a Comprehensive Evaluation Actually Looks Like
A thorough evaluation for AuDHD typically includes:
- Clinical interview covering developmental history, current functioning, and how symptoms show up across different settings
- Standardized cognitive and neuropsychological testing measuring attention, processing speed, working memory, and executive function
- Behavioral rating scales completed by both the client and, when possible, someone who knows them well
- Autism-specific assessment tools designed to capture the full range of autistic presentation, including high-masking profiles
- Review of any prior evaluations or records that might inform the picture
- Integration of all findings into a written report with specific diagnoses and recommendations
The goal is to understand how your brain actually works — not just whether you check enough boxes on a symptom list.
Why Questionnaire-Only Approaches Fall Short
Some telehealth platforms offer ADHD "assessments" that are really just brief symptom checklists. These can be a useful starting point, but they're not diagnostic. They can't capture the complexity of AuDHD, they miss masking almost entirely, and they don't distinguish between ADHD, autism, anxiety, trauma, or other conditions that can look similar on the surface.
With AuDHD specifically, the interaction between the two conditions changes how each one presents. You need a clinician who's actively looking for both and knows how to interpret the combined picture.
What Happens After a Diagnosis
A diagnosis isn't the end of the process. It's the beginning of actually understanding yourself.
After a formal AuDHD evaluation, you should receive a detailed written report explaining your results, what they mean, and what support is recommended. That report can open doors — workplace accommodations, educational supports like IEPs, extended testing time for standardized exams — and it gives you something concrete to guide therapy or coaching.
Knowing you have AuDHD reframes your history. The burnout makes sense. The social exhaustion makes sense. The years of trying harder and still feeling like you were falling short — that makes sense too.
What comes next is figuring out how to build a life that actually works for your brain, not one designed for a neurotype you were never going to have.
Support after diagnosis can look like:
- Therapy that's genuinely neurodivergent-affirming and understands AuDHD
- Executive function coaching to build practical systems that work with how your brain operates
- Life skills classes focused on the real-world challenges that come with AuDHD
- Community with other neurodivergent people who actually get it
Getting Evaluated Without a Two-Year Wait
Traditional clinic waitlists for neuropsychological evaluations can stretch 18 months or longer. That's a long time to sit with unanswered questions.
Sachs Center offers virtual neuropsychological evaluations for AuDHD, ADHD, and autism across 48+ states via PSYPACT. Evaluations are conducted by licensed psychologists who specialize in high-masking presentations and have specific experience working with women and BIPOC individuals who've been overlooked by previous providers.
Everything happens from home. No waiting rooms, no travel, no performing normalcy in a clinical setting that might suppress the very traits a clinician needs to see.
If you're not sure where you land, the free AuDHD test on the Sachs Center website is a clinician-designed starting point. It takes a few minutes and can help you figure out whether a full evaluation makes sense.
For parents, child ADHD testing and child autism testing are also available for kids ages 6 through 17.
FAQs
What is the difference between AuDHD and just having ADHD or autism separately?
AuDHD means you meet the diagnostic criteria for both ADHD and autism. The combination creates a distinct experience because the two conditions interact with each other — ADHD's drive toward novelty and impulsivity can conflict with autism's preference for routine and predictability, and the traits of each condition can mask or amplify the other. Someone with AuDHD may not look clearly autistic or clearly ADHD because the two presentations blend together in ways that can be hard to untangle.
Can you be diagnosed with both ADHD and autism at the same time?
Yes. Since the DSM-5 was published in 2013, clinicians have been able to formally diagnose both conditions in the same person. Before that, older guidelines discouraged dual diagnosis — which is a big part of why so many people went undiagnosed or received only one diagnosis for years.
Why do so many people with AuDHD get misdiagnosed with anxiety or depression first?
Anxiety and depression are often outcomes of living with undiagnosed AuDHD, not the root cause. When masking, sensory overload, executive dysfunction, and social exhaustion go unrecognized, what's visible often looks like anxiety or depression. Providers treating only those surface symptoms may never look any deeper.
How long does a comprehensive AuDHD evaluation take?
A thorough neuropsychological evaluation typically involves several hours of testing spread across one or more sessions, plus time for the clinician to score results, interpret findings, and write a detailed report. The exact timeline varies by provider, but expect the full process to take a few weeks from start to receiving your written report.
Is virtual AuDHD testing as accurate as in-person testing?
Yes, when conducted by a licensed psychologist using standardized assessment tools. Telehealth evaluations can capture the same information as in-person ones. For high-masking individuals, being in a familiar home environment can actually reduce performance anxiety and allow for a more authentic presentation during the assessment.
What documentation do I get after an AuDHD evaluation?
You'll receive a written neuropsychological report that includes your test results, diagnostic conclusions, and specific recommendations. That report can be used to request workplace accommodations, educational supports, IEP services, or extended testing time for standardized exams like the SAT, GRE, or GMAT.
I've been told I'm "too high-functioning" to be autistic. Should I still pursue an evaluation?
Yes. "High-functioning" isn't a diagnostic category — it's a phrase that often gets used to dismiss people who've learned to mask their traits effectively. Many autistic and AuDHD people appear highly capable in structured settings while experiencing significant internal distress and burnout. A thorough evaluation by a clinician who understands masking looks past surface performance to assess what's actually going on.
You've been doing this research for a reason. If the AuDHD picture resonates, that's worth taking seriously. A proper evaluation can give you the clarity you've been looking for — and a real path forward that fits how your brain actually works.
Learn more at sachscenter.com.
