While they are separate diagnoses, ADHD and Autism (ASD) frequently occur together with many people meeting the criteria for both, leading to the informal community term ‘AuDHD’.
Research suggests a significant number of autistic people also have ADHD⁴, and vice versa.
Both conditions begin in childhood and affect brain development, they often impact attention, executive function, and social life in similar ways. These overlapping symptoms can sometimes complicate a diagnosis, making a specialist assessment essential to untangle the two.
Clinicians often use the DSM-5 diagnostic manual when assessing ADHD and autism. In the past, older versions of this manual actually prevented a dual diagnosis, making it very difficult to identify both together.
This changed when newer guidelines removed that restriction. If you have ever wondered, ‘can you be diagnosed with ADHD and autism’ at once, the answer is now a clear yes, which is why more people are now discovering they have a combination of both.
Autism is primarily characterised by unique ways of communicating and experiencing the world. Many people find comfort in clear rules and predictable routines, often developing a deep, expert-level knowledge of specific interests.
ADHD often presents as a persistent difficulty with managing attention and regulating energy levels. It can make daily life feel like a constant battle with disorganisation and internal restlessness, often referred to as ‘time-blindness’.
Difficult concentrating can arise from ADHD, Anxiety or a combination of both.
ADHD and anxiety rarely look like the “hyperactive child” stereotype in adults. Many people learn to hide the struggle by over-preparing, working late and using endless reminders, so from the outside they seem capable while feeling constantly behind inside.
When you also have anxiety or low mood, professionals can easily focus on those first and not ask about the lifelong pattern of focus, organisation and impulsivity. That’s why so many adults reach assessment feeling unseen and doubting themselves.
Support for ADHD can include stimulant or non-stimulant medication, psychoeducation, and practical strategies for organisation, time-management and planning.
Some people also benefit from coaching or CBT that is adapted to ADHD and focuses on building daily routines and managing impulsivity.
Anxiety is commonly treated with psychological therapies such as cognitive behavioural therapy (CBT).
Where appropriate, a GP or mental health team may also offer medication such as SSRIs, alongside lifestyle support around sleep, stress and physical health.
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Support for ADHD can include stimulant or non-stimulant medication, psychoeducation, and practical strategies for organisation, time-management and planning.
Got a question? Just reach out. We’ll get back to you as soon as we can, because your health matters, and we’re with you every step of the way.
Yes. Many adults with ADHD also experience an anxiety disorder, so having both is common and means you may need support for two linked conditions, not just one.