How to Get an Adult Diagnosis for Autism and ADHD 

Seeking an adult AuDHD diagnosis can be life-changing for those who have lived with undiagnosed traits of autism and ADHD. Many adults grow up without knowing they are neurodivergent, often developing coping strategies that mask their differences. However, these strategies can be exhausting and may not address underlying challenges. An official autism ADHD assessment can bring clarity, access to support, and validation of lived experiences. 

The process for getting an adult neurodiversity evaluation involves multiple steps, from recognising symptoms to working with qualified professionals who understand how autism and ADHD are present in adulthood. 

Steps to Getting an Adult AuDHD Diagnosis 

This includes seeking a referral, completing assessments, sharing life history, and discussing symptoms with a specialist. 

Recognise Your Traits  

Many adults start by identifying patterns in their behaviour, thinking, and experiences that align with both autism and ADHD such as difficulties with organisation, sensory sensitivities, hyperfocus, or social communication challenges. 

Gather Personal History  

An accurate autism ADHD assessment often requires information from childhood. This can include school reports, feedback from family members, or early developmental records, as both autism and ADHD are lifelong conditions. 

Find a Specialist  

Look for psychologists, psychiatrists, or specialist clinics experienced in diagnosing adults with both conditions. Not all professionals have expertise in adult AuDHD diagnosis, so finding the right fit is important. 

Undergo a Comprehensive Assessment  

The evaluation may include interviews, questionnaires, cognitive tests, and observations. It will assess traits related to both autism (such as social communication and sensory processing) and ADHD (such as attention regulation and impulsivity). 

Receive the Diagnostic Report  

If diagnosed, the report will outline your profile, strengths, and challenges, along with recommendations for workplace accommodations, therapy, or coaching. 

Access Ongoing Support  

An adult neurodiversity diagnosis opens the door to tailored interventions, peer support, and greater self-understanding. Support might include executive function coaching, occupational therapy, or social skills development. 

Getting an adult AuDHD diagnosis is not just about labelling it is about gaining the tools and resources to live authentically and effectively. 

For guidance on finding the right autism ADHD assessment, providers like ADHD Certify can connect you with professionals experienced in adult diagnosis.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Autism Spectrum Disorder.