Yes. ADHD can present as inattention alone, with no hyperactivity. The NHS calls this the predominantly inattentive type, often missed in children, especially girls, because the signs are quieter.
ADHD comes in three presentations, not one
Hyperactivity is only one face of ADHD. The NHS groups the symptoms into two sets, inattentiveness and hyperactivity-impulsiveness, and recognises three ways they can combine:
- Predominantly inattentive: the quiet pattern of daydreaming, forgetfulness, disorganisation, careless mistakes and not finishing tasks.
- Predominantly hyperactive-impulsive: the visible pattern people picture, with fidgeting, interrupting and struggling to sit still.
- Combined: both sets of signs together.
The NHS is explicit that "most children and young people with ADHD have symptoms of both" types but "some only show signs of one" (NHS, symptoms of ADHD). A child can meet the threshold on inattentive signs by themselves. The NHS says the symptoms usually start before the age of 12, and that a diagnosis is made by an ADHD specialist, such as a paediatrician or a child and adolescent psychiatrist, not by a GP or a teacher (NHS, diagnosis of ADHD). None of the signs a specialist weighs has to be about hyperactivity.
Why the inattentive type gets missed
A child who cannot sit still and blurts things out gets noticed; a child who sits quietly and drifts off does not. The inattentive signs look like daydreaming or disorganisation rather than disruption, so they rarely trigger the same concern from a teacher, and they are easy to read as "lazy", "away with the fairies", or simply shy. This is also why ADHD is, in the NHS's own words, "recognised less often in girls than boys": girls more commonly have inattentive symptoms, and those signs "can be harder to recognise". So if someone has told you it cannot be ADHD because your child is not hyperactive, that is a common misunderstanding, not a clinical fact. You can read more about how this looks day to day in our sibling answer on what inattentive ADHD looks like in girls.
What the answer means for your next move
Because inattentive signs do not announce themselves, the push for an assessment often has to come from you. Only a specialist can diagnose ADHD, meaning a psychiatrist, paediatrician or other suitably qualified clinician; a GP, teacher or SENCO cannot (NICE guideline NG87, the national NHS rulebook for ADHD). What they can do is refer. One practical caution: the NHS Right to Choose route, which let families pick an alternative assessment provider, has been paused or capped in several NHS commissioning areas as of 2026, so it is worth checking whether it is open where you live rather than assuming it is.
Where the law comes from
Related
This page is general information, not clinical or legal advice.