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So what exactly is a dual diagnosis?

Dual diagnosis is a term used to describe individuals who are both autistic and have Attention Deficit Hyperactivity Disorder (ADHD). While these neurotypes were once considered mutually exclusive, we now know they can and often do coexist.

In the UK, awareness of dual diagnosis is growing, especially among adults seeking late diagnoses and parents advocating for their children. 

How long has dual diagnosis been around?

In 2013, the Diagnostic and Statistical Manual of Mental Disorders (DSM) guidelines changed with the DSM-5, which acknowledged that both conditions can co-occur, a pivotal moment for neurodiversity advocacy.

In the UK, this shift has led to more inclusive assessment pathways, although access and understanding still vary across regions.

For example, here at Autism Anglia, we provide dual pathways covering both autism and ADHD, and charities continue to play a vital role in raising awareness and improving support.

What are the characteristics of when Autism and ADHD are present together?

People with both Autism and ADHD may experience a unique blend of traits. These can include:

• Sensory sensitivities alongside impulsivity
• Difficulty with executive function, planning, organising, and completing tasks
• Hyperfocus on interests, yet struggling with attention elsewhere
• Social communication differences paired with restlessness or hyperactivity
• Emotional dysregulation, often misunderstood as behavioural issues
• Masking behaviours, especially in girls and women, which can delay diagnosis

Every individual is different. Characteristics may vary in intensity and presentation, and many people develop coping strategies that mask their neurodivergence, particularly in adulthood.

Why Getting Assessed Matters

Whether you’re an adult wondering if autism and/or ADHD explains your lifelong challenges, or a parent seeking clarity for your child, an assessment can be life-changing. It opens doors to understanding, support, and community and validates experiences that may have been dismissed or misunderstood for years.

Take the First Step with Autism Anglia

Autism Anglia offers a free online screening tool designed to help adults and parents explore whether an Autism, ADHD or combined dual assessment might be appropriate. It’s quick, confidential, and tailored to UK pathways.

You’re not alone in this journey. Whether you’re seeking answers for yourself or your child, Autism Anglia is here to support you every step of the way.