ADHD masking in adults: what the term means

Some adults with ADHD look organized, calm and on top of things from the outside. Inside, they are running constant checks, setting a dozen alarms, rehearsing what to say, staying late to catch up, and hiding how hard it all is. Online, this is often called ADHD masking. This article explains what the term means, what the research shows, where the evidence is thin, and why masking can delay a diagnosis.

An informal term, borrowed from autism research

"Masking" is an informal term. It is not a diagnosis or an ADHD symptom. A 2026 narrative review in Frontiers in Psychology describes ADHD masking as efforts to conceal or compensate for ADHD-related characteristics in order to meet social expectations, and notes that the idea draws on research about camouflaging in autism. The same review says empirical research on masking in ADHD remains limited and calls for ADHD-specific frameworks.

Researchers also use related words: camouflaging (hiding traits), and compensation or compensatory strategies (workarounds that offset a difficulty). In everyday use, "masking" usually blends both.

What masking can look like

Some of these are healthy skills. A 2017 qualitative study from Switzerland interviewed 32 adult ADHD outpatients about how they coped before diagnosis. They described many self-taught strategies in five groups (organizational, motor, attentional, social and pharmacological), with varying effectiveness, and many saw some of their strategies as genuinely helpful. The authors suggested that these strategies help explain why ADHD is diagnosed late or missed.

What the research shows

• Adults with ADHD do report camouflaging. A 2024 Dutch study in Autism Research compared adults aged 30 to 90. Adults with ADHD scored higher on total camouflaging than a comparison group, but lower than autistic adults.
• Masking is common and depends on context. A 2025 survey in Frontiers in Psychiatry of young adults with ADHD and/or autism (803 with ADHD alone) found masking was commonly reported and varied by setting. "Mentally exhausting" was among the challenges participants reported about their diagnosis.
• Compensation can delay diagnosis, especially in women. A 2020 expert consensus on girls and women with ADHD, from the UK ADHD Partnership, states that compensatory behaviors may mask impairments and delay referral, and that some girls and women become skilled at camouflaging their struggles, which can lead others to underestimate them.
• Women describe it themselves. In a 2025 focus-group study of 14 women diagnosed as adults, many said they had not recognized their own symptoms, described factors that masked identification, and reported needing considerable self-advocacy to have ADHD considered.
• Masking can extend to feelings. In a small 2026 University of Sussex study, five undergraduates with ADHD described masking painful reactions to perceived rejection, and said the masking left them feeling detached from themselves, withdrawn and lonely. The study was tiny and qualitative, so it shows what masking can feel like, not how common it is. See rejection sensitive dysphoria.

NIMH makes a related point: some adults were not diagnosed as children because supportive environments helped them thrive, or because a milder form was manageable until the demands of adulthood, especially at work. It adds that ADHD in girls and women is especially likely to have been missed in childhood. More on this is in ADHD in women.

What the research does not show

• A validated ADHD masking measure. The 2024 Dutch study used a questionnaire built to measure camouflaging of autistic traits, and its authors called for more general measures. In that study, autism traits, not ADHD traits, predicted camouflaging.
• How common masking is in ADHD. No study reviewed here gives a reliable prevalence. The 2025 survey sample was 79% female and recruited online, so its results may not apply to all adults with ADHD.
• That masking causes burnout or depression. The link is often stated online. The 2026 review describes the mechanisms connecting stigma and masking as unclear and calls for longitudinal studies.

Why masking matters for an evaluation

An ADHD diagnosis requires symptoms that cause impairment. When effort and workarounds hide that impairment, it can be missed by teachers, employers, family and sometimes clinicians. The 2020 consensus advises assessors to look at factors that may mask behavior in different settings, including compensatory strategies, both helpful and unhelpful. It also lists unhelpful coping such as alcohol or cannabis use to manage emotional turmoil.

The consensus notes that life transitions, when demands rise, can "unmask" previously unrecognized ADHD. That fits a common story: things held together through school, then fell apart with a promotion, a first child or a move. For adults diagnosed late, see can you develop ADHD as an adult and ADHD evaluation without childhood records.

If you suspect masking, it helps to tell the evaluator what your strategies are and what they cost. "I am never late" is different from "I am never late because I set six alarms and leave an hour early." The cost is part of the picture.

Questions to bring to an appointment

• Which strategies do you rely on, and what happens when they fail?
• How much extra time or effort does keeping up take compared with peers?
• When did things start to slip: a new role, a baby, a move, menopause?
• Do you use alcohol, cannabis, caffeine or other substances to cope?
• Can someone who knew you as a child describe what you were like? The guide to asking family about childhood symptoms can help.

When to talk to a clinician

Masking is worth raising with a clinician when keeping up takes far more effort than it seems to take others, when the workarounds are wearing thin, or when long-standing focus, organization or restlessness problems are starting to show at work or home. The adult ADHD self-test can help you put words to what you notice, but it cannot diagnose ADHD. If your answers depend heavily on workarounds, mention that to the evaluator.

Dr. Shershow is a psychiatrist who focuses on adult ADHD and sees adults located in New York or New Jersey. His evaluation covers current symptoms, childhood, school and work history, health, and other explanations such as anxiety or depression, and ends with what it found and the treatment options that fit. See ADHD testing in NYC or ADHD testing in New Jersey, or call the office.