You keep a to-do list with backup systems, you prepare for meetings twice as thoroughly as anyone else, and you have learned to look calm even when your thoughts are somewhere else entirely. From the outside, things look fine. Inside, it is exhausting. If that resonates, ADHD masking might be part of the picture.
Disclaimer: The information in this article is for general guidance only and does not constitute medical or therapeutic advice. If you think you may have ADHD or another neurodevelopmental condition, please consult a qualified clinician. Do not make changes to any treatment or management plan based solely on what you read here.
Key Takeaways
- ADHD masking is the effort to hide or compensate for ADHD symptoms to appear neurotypical
- Undiagnosed ADHD in adults is far more common than most people realise: only around 1 in 9 UK adults with ADHD have a formal diagnosis
- Women are disproportionately affected, with a nearly four-year average delay in diagnosis compared with men
- Masking is not the same as coping well. It carries real costs to mental health over time
- Therapy and specialist coaching can help you manage ADHD without relying on constant self-suppression
What is ADHD masking?
ADHD masking, sometimes called camouflaging or compensating, is the conscious or unconscious effort to hide ADHD symptoms and appear neurotypical in social, professional, or academic settings. It is not the same as being good at your job or managing life well.
Everyday coping means using strategies to manage a difficulty. Masking means concealing that the difficulty exists at all. Someone masking ADHD might spend hours preparing for something a colleague handles in minutes, but the preparation stays invisible. What others see is competence. What the person feels is the weight of keeping it all together.
How common is undiagnosed ADHD in UK adults?
NICE estimates that around 3 to 4% of UK adults have ADHD, equating to roughly 1.3 to 1.8 million people.¹ NHS England’s May 2025 ADHD data puts the total estimated number of people in England with ADHD, including undiagnosed cases, at 2,498,000.²
Analysis of over 9 million UK GP records found that only 0.32% had a recorded ADHD diagnosis, approximately 1 in 9 of all adults likely to have the condition.³ The gap between those who have ADHD and those who know about it is one of the largest in mental health.
| What the data shows | Source |
| NICE estimates 3 to 4% of UK adults have ADHD. | NICE / NHS England, 2025 |
| Estimated 2,498,000 people in England have ADHD (diagnosed and undiagnosed). | NHS England MI Data, May 2025 |
| Only 0.32% of 9 million+ GP records had a recorded ADHD diagnosis (approx. 1 in 9). | British Journal of Psychiatry, 2021 |
| Up to 549,000 people on ADHD assessment waiting lists in England (March 2025) | NHS England MI Data, 2025 |
Adult ADHD symptoms that often get masked
- The inattentive symptoms are the ones most frequently hidden: difficulty sustaining focus on tasks that are not immediately engaging, chronic disorganisation managed through elaborate compensatory systems, losing things, and difficulty following through, not due to lack of effort but due to how the brain prioritises.
- Hyperactive symptoms get masked differently. Restlessness gets channelled into constant busyness. The urge to interrupt gets managed through intense self-monitoring in conversation.
Emotional symptoms, including mood swings, rejection sensitivity (an intense response to perceived criticism or disapproval), and irritability, are also commonly hidden and frequently mistaken for anxiety or personality traits.
Behavioural signs that masking is happening include: over-preparing to a degree others would find disproportionate, rehearsing conversations before having them and replaying them after, using hyper-scheduling not by preference but out of necessity, and experiencing post-event exhaustion after situations that seemed to go fine. Being repeatedly described as “so organised” or “not the ADHD type” is itself a signal.
Why women are more likely to mask ADHD and be diagnosed later
Research from Queen Mary University London, published in the Journal of Child Psychology and Psychiatry (2024), confirmed that women with ADHD experience a nearly four-year delay in diagnosis compared with men, receiving a diagnosis at an average age of 23.5 versus 19.6, despite equally high rates of prior mental health service contact.⁴
Diagnostic criteria for ADHD were largely developed on male, predominantly hyperactive presentations. Girls and women more commonly present with inattentive ADHD, which is less visible and less disruptive. Societal expectations of compliance and organisation mean girls learn early to compensate for symptoms that might otherwise prompt a referral.
The result is diagnostic overshadowing: because the ADHD is masked, what gets noticed is the anxiety or burnout that masking produces. Treatment targets those presentations for years while the underlying cause goes unrecognised.
If that overlap feels familiar, the article on when anxiety is more than everyday stress covers how the two conditions interact.
The hidden cost of ADHD masking
Sustained masking is cognitively and emotionally expensive. A 2025 meta-analysis in Scientific Reports found that neurodivergent females display consistently higher camouflaging scores than males, with researchers noting meaningful long-term effects on psychological wellbeing.⁵ Research on late-diagnosed women consistently documents internalised criticism, low self-esteem, guilt, and shame linked to years of unrecognised masking.⁶ The person does not attribute the difficulty to ADHD. They attribute it to themselves.
Over time, this accumulates into burnout. Not the everyday tired kind, but the kind where the compensatory systems that have been holding everything together stop working. The article on stress, burnout, and emotional overwhelm covers what that process looks like and how therapy can help.
What to do if you think you’re masking ADHD
The first step is getting clarity through a formal ADHD assessment carried out by a qualified clinician. This matters because the strategies that help with ADHD are specific to how ADHD works, and they are different from generic anxiety or stress management techniques.
NHS waiting lists for ADHD assessment run into years in many parts of England. The article on private vs NHS mental health assessment covers what each route involves and what to expect before you decide.
Once you have clarity, support can address both dimensions: the psychological effects of years of masking and the practical day-to-day management of ADHD.
ADHD executive function coaching at Therachange is designed specifically for adults who want ADHD-aware support with organisation, task initiation, time awareness, and emotional regulation in ways that work with how their brain actually functions. Sessions are 45 minutes, fully online, and available without a waiting list.
Frequently Asked Questions
Can masking look like anxiety?
Yes, frequently. Anxiety is one of the most common co-occurring conditions in adults with ADHD, and symptoms overlap significantly: difficulty concentrating, restlessness, irritability, and sleep problems. The distinction matters clinically because treating anxiety without addressing underlying ADHD often produces limited results. Many adults spend years being treated for anxiety before ADHD is considered.
How do I know if I have undiagnosed ADHD as an adult?
Undiagnosed ADHD in adults often presents as persistent difficulty with organisation, attention, and follow-through that does not respond to effort alone, alongside emotional symptoms like rejection sensitivity and mood swings. If these difficulties are lifelong and appear across multiple areas of life, a formal assessment is the most reliable next step.
Can therapy help with ADHD masking?
Therapy addresses the psychological effects of long-term masking: the low self-esteem, shame, and anxiety that build when a person attributes ADHD difficulties to personal failure for years. ADHD coaching addresses practical symptom management without requiring masking. The two approaches work well together.
References
[1] National Institute for Health and Care Excellence (2019) Attention deficit hyperactivity disorder: diagnosis and management. NICE Guideline [NG87]. Available at: https://www.nice.org.uk/guidance/ng87 [Accessed: July 2026].
[2] NHS England (2025) ADHD Management Information: May 2025. Available at: https://digital.nhs.uk/data-and-information/publications/statistical/mi-adhd/supporting-information [Accessed: July 2026].
[3] Silberstein, M. et al. (2021) Life expectancy and years of life lost for adults with diagnosed ADHD in the UK: matched cohort study. British Journal of Psychiatry. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7617439/ [Accessed: July 2026].
[4] Agnew-Blais, J.C. (2024) Hidden in plain sight: delayed ADHD diagnosis among girls and women. Journal of Child Psychology and Psychiatry. Available at: https://acamh.onlinelibrary.wiley.com/doi/10.1111/jcpp.14023 [Accessed: July 2026].
[5] Milner, V. et al. (2025) A meta-analytic review of quantification methods for camouflaging behaviors in autistic and neurotypical individuals. Scientific Reports, 15, 22885. Available at: https://www.nature.com/articles/s41598-025-06137-z [Accessed: July 2026].
[6] The impact of late ADHD diagnosis on mental health outcomes in females (2024). ScienceDirect. Available at: https://www.sciencedirect.com/science/article/pii/S2590291124001748 [Accessed: July 2026].
