The ADHD That Hides in Plain Sight: Understanding Masking in Girls

Picture the ADHD most people picture: a boy full of energy, calling out or moving around the classroom a lot, losing track of where he has left his things. It's a real presentation, and it's the one most parents, teachers and even some clinicians are trained to spot first.

Now picture the girl two desks over. She hands her work in on time. She's polite. Her

teacher describes her as "a bit of a daydreamer" at parent-teacher interviews, nothing more. She might have ADHD too. She's just spent the whole day working hard to hide it.

What masking actually looks like

Masking is the ongoing, effortful work of covering up a struggle so it doesn't show. For a lot of girls with ADHD, that means copying a friend's notes rather than admitting she lost track of the lesson. Rehearsing what to say before she says it. Holding herself together at school, then unravelling the moment she's through the front door.

That last one catches a lot of parents off guard. A child who seems completely fine at school and then falls apart at home isn't being inconsistent. She's often just out of the effort it took to remain calm and on task all day.

International research consistently finds that girls tend to be identified with ADHD later than boys, and are more often diagnosed with the inattentive presentation rather than the hyperactive-impulsive one clinicians are trained to recognise on sight. Inattentive ADHD doesn't interrupt a classroom. It just quietly costs a child more than it should to keep up.

Why the cost adds up

Masking takes real, sustained effort, and that effort has to come from somewhere. Girls who mask well are often praised as "switched on" or "such a mature student," while the work behind that performance stays invisible, including to the girl herself. Over time, unsupported effort like this tends to show up as anxiety, perfectionism or burnout, sometimes years before anyone asks whether ADHD might be part of the picture.

By the time some girls are assessed, whether as teenagers or well into adulthood, they've often spent years being told they're capable, sensitive or "a bit much," without anyone asking the more useful question: what is this actually costing her to do?

What actually helps

Getting this right starts with looking past the behaviour you can see. At Blossom, our psychology and assessment team looks at the whole picture rather than a single presentation: how a child manages at school versus at home, what's driving the effort behind the performance, and where anxiety, masking and attention difficulties overlap and where they don't. We work alongside schools as well as families, because a plan that only makes sense in one environment rarely holds up in the other.

If you're watching a daughter, a student, or yourself, and wondering whether what you're seeing is ADHD, masking, anxiety, or some mix of the three, that question is worth taking seriously rather than sitting with for another year.

Talk to our team: blossompsychology.co.nz/contact-us