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ADHD in children: signs, support and next steps

Page summary

ADHD symptoms in kids show as trouble focusing, high energy and acting on impulse, usually before 12. A lively, easily distracted young child isn’t showing ADHD by that alone. Signs in girls are often quieter, so they’re easier for parents and teachers to miss. A diagnosis rests on signs seen in more than one setting, never on a checklist alone. Support usually starts with changes at school and help for parents, before any medication. Online ADHD assessments at AuDHD Psychiatry are for children aged 6 to 17.

Dr Darren O’Reilly

Reviewed by Dr Darren O’Reilly.

Published 12 February 20269 min read

Review and publication details

Clinically reviewed by Dr Darren O’Reilly, DPsych, Chartered Psychologist (CPsychol), HCPC registered practitioner psychologist, registration number PYL041661 (check the HCPC register).

AuDHD Psychiatry is the trading name of ADHDdegree Ltd, a company registered in Scotland, company number SC822923. Registered office: 3f1 Third Floor, Hill Street, Edinburgh, EH2 3JP. Registered with the ICO, number ZB823033.

Maybe your child seems to run on a different setting from other children, or a teacher has said something. It’s hard to tell what’s simply part of being young and what might be more. Wanting to understand your child better is a good reason to read on. A pattern that lasts tells you far more than one difficult week.

At a glance
  • Age: signs usually begin before 12.
  • Under 5: lots of energy and a short attention span are normal for the age.
  • Girls: ADHD is recognised less often in girls, often because their signs are quieter.
  • First step: ask your child’s teacher what they notice in class.

What are the symptoms of ADHD in kids?

The symptoms of ADHD in kids affect attention, energy levels and impulse control [1]. Most children with ADHD show signs of both the inattentive and the hyperactive-impulsive kind, though some show only one [1]. Clinicians call these groupings presentations. Some children seem mostly dreamy and hard to reach, while others are rarely still.

Symptoms usually start before the age of 12 [1]. What you’re really looking for is a pattern across attention, activity and impulses, rather than a single habit. It helps to think about how your child copes across a whole ordinary week. A few notes each evening, on mornings, homework and bedtime, make that week easier to describe later.

What are the signs of ADHD at home and at school?

The signs of ADHD tend to show up in ordinary moments, like getting dressed or doing homework [1]. A teacher and a parent may describe the same child quite differently, so comparing notes is worth the effort.

Attention

  • gets distracted easily, even halfway through a task.
  • finds it hard to listen or follow instructions.
  • forgets everyday jobs, such as brushing teeth.
  • starts things and doesn’t finish them.
  • loses homework, PE kit or water bottles.

Activity and impulses

  • fidgets, taps or can’t sit still.
  • gets up when meant to stay seated.
  • talks a lot, or loudly.
  • finds it hard to wait their turn.
  • interrupts or acts before thinking.

For a diagnosis, the signs need to show in two or more important settings, such as home and school [2]. They also need to cause real difficulty, not just the odd hard day [2].

ADHD in girls: what are the signs, and why are they missed?

ADHD is thought to be recognised less often in girls, perhaps because their inattentive signs are harder to spot [1]. A girl who drifts off quietly in class rarely holds up the lesson. NICE notes that girls are less likely to be referred for an assessment, and may get a different diagnosis first [2].

A 2002 review pooling earlier studies found girls with ADHD had less hyperactivity than boys, and more anxiety and low mood [3]. Signs you might notice in your daughter include:

  • daydreaming or drifting off in class.
  • forgetting or losing things.
  • chatting or blurting things out, rather than being physically busy.
  • worry or low mood alongside struggles at school.

A 2020 expert consensus statement describes a quieter, more inward picture of ADHD as common in girls [4]. A girl who copes on the surface can look as if she’s doing fine. The statement adds that some girls become good at hiding their difficulties behind coping strategies [4].

Can toddlers and young children have ADHD?

A busy, distractible child under 5 doesn’t necessarily have ADHD [1]. Plenty of children are impulsive and full of energy at this age. Restlessness at nursery or in reception can also be a sign of being tired, anxious or stressed [1]. If the signs are strong and last for months, talk to your GP or health visitor.

Where a young child does have ADHD, NICE’s first step is a group training programme for parents, focused on ADHD [2]. Medication isn’t offered under 5 without a second opinion from a specialist service with expertise in young children [2]. AuDHD Psychiatry assesses children from the age of 6.

What else could it be, and how is ADHD diagnosed in children?

Other conditions can look like ADHD, and some can sit alongside it. A GP may check whether anxiety, Tourette’s or signs of autism in children explain the behaviour better [1]. Anxiety, depression or a learning difficulty such as dyslexia can also come alongside ADHD [1]. Sorting out which is which takes time and more than one view of your child.

NICE says a diagnosis shouldn’t rest on a rating scale or an observation alone [2]. Tools such as the Conners’ rating scales still add useful detail, and a school observation helps when there’s doubt [2]. The usual route starts with your child’s teacher, who will often bring in the school’s special educational needs co-ordinator (SENCO) [1]. A GP can then refer your child to a specialist [1].

What treatment helps children with ADHD?

Treatment for children aged 5 and up starts with parent support, not medicine [2]. The support covers information about ADHD and can run in a group, sometimes over just one or two sessions [2]. Changes to your child’s surroundings, at school and at home, are part of this first stage too.

Medication is offered only if symptoms still cause a persistent, significant difficulty after those changes have been made and reviewed [2]. An ADHD specialist starts and monitors any medicine, such as methylphenidate [1]. Some children need to try more than one before one suits them [1]. Our guide to ADHD medication for children sets out each step.

Later on, some young people who’ve been helped by medication still find things hard. For them, NICE suggests a course of cognitive behavioural therapy (CBT), covering social skills, problem-solving and self-control [2].

How can you support your child at home and at school?

Classroom changes are among the first kinds of support NICE describes [2]. Examples include:

  • a different seat, or changes to lighting and noise.
  • fewer distractions around the desk.
  • shorter spells of focus, with breaks to move.
  • instructions written down.
  • help from a teaching assistant.

In England, the SENCO at your child’s school or nursery can look at their needs with you [5]. Bring notes on what you see at home, because they help the school see the whole picture. SEN support is help given in school [5]. Children and young people up to 25 with more complex needs may get an education, health and care (EHC) plan [5]. The other UK nations run their own school support systems.

Support for parents shouldn’t wait for a formal diagnosis, according to NICE [2]. At home, regular sleep, physical activity your child enjoys and clear instructions, one at a time, all help [1].

When is it time to get your child checked?

It’s worth a closer look when home and school support hasn’t been enough. A referral can be raised by your GP or the school’s SENCO [1].

An assessment may help if:

  • the signs have lasted a long time, at home and in class.
  • support so far hasn’t made enough difference.
  • your child is aged 6 to 17.

It might not be right today if:

  • your child needs urgent help now. Call NHS 111 and choose the mental health option, or in Northern Ireland call Lifeline free on 0808 808 8000, any time. In an emergency, call 999 or go to A&E [6].
  • your child is under 6, because our child assessment starts at age 6.

At AuDHD Psychiatry, the ADHD assessment for children is one online appointment, with no GP referral. A parent can be present, and we send the outcome letter the next day. The full report follows within two weeks. You could start with the free ADHD test for children, which doesn’t diagnose. A free 15-minute call can help you work out which assessment or support fits your child.

Where to go from here

Not sure yet?
Take the free ADHD test for children

A private online screening with results at the end. It is not a diagnosis.

free ADHD test for children
Ready to talk it through?
Book a free 15-minute call

A free call with our team to ask questions and check which assessment fits.

Book a free 15-minute call

Questions people ask

What are the first signs of ADHD in a child?

Parents often first notice a child who can’t settle, drifts off or acts before thinking. What stands out is how much more often it happens than with other children the same age. The signs that matter last for months and turn up in more than one place, such as at home and with friends.

Does ADHD look different in girls and boys?

Sometimes, but not in a fixed way. ADHD is more common in males, according to a 2021 international consensus statement [7]. That doesn’t mean boys are always busy and girls always quiet. Either can have dreamy, inattentive signs, and either can be restless and impulsive. Your own child’s pattern matters far more than whether they’re a boy or a girl.

Can a girl’s ADHD show up only as a teenager?

ADHD begins in childhood, but quieter, inward signs in girls can go unnoticed until school or social demands grow [4]. Secondary school brings more homework, more independence and trickier friendships. A girl who coped in primary school may start to struggle then. Thinking back to her younger years can help you and a GP see the longer pattern.

Is an ADHD checklist enough to tell if my child has ADHD?

No, because a diagnosis shouldn’t rest on a rating scale alone, as NICE makes clear [2]. A checklist is still useful, because it helps you describe what you see to a teacher or GP. Write down examples from home and school, with rough dates if you can. Real examples give a clearer picture than a score on its own.

Does my child need a diagnosis to get help at school?

Not always: in England, the SENCO can look at your child’s needs with you and talk about SEN support [5]. The school decides what support to offer, so it’s worth asking what can start straight away. Keep a note of what’s agreed and when it will be reviewed.

What if my child might be autistic too?

ADHD and autism can come together, and a GP may consider autism when looking at a child’s signs [1]. When both seem likely, one assessment can look at them side by side. A child AuDHD assessment with us is four appointments. It covers autism and ADHD together, so you don’t need to arrange two separate assessments.

In short

ADHD in children shows up across attention, activity and impulses, and the signs begin early and appear in more than one place. Girls are easier to miss, because their signs are often quieter. Changes in the classroom and support for parents come first, and medication is weighed up later by a specialist. If the signs have lasted and the changes haven’t been enough, gather your notes from home and school. AuDHD Psychiatry can then help you think through what to do next.

Sources

  1. NHS, ADHD in children and young people, page last reviewed 19 March 2025, https://www.nhs.uk/conditions/attention-deficit-hyperactivity-disorder-adhd/ (read 01/10/2026)
  2. National Institute for Health and Care Excellence (NICE), guideline NG87, Attention deficit hyperactivity disorder: diagnosis and management, published 14 March 2018, last updated 13 September 2019, https://www.nice.org.uk/guidance/ng87 (recommendations read 01/10/2026)
  3. Gershon J, “A meta-analytic review of gender differences in ADHD”, Journal of Attention Disorders, January 2002, 5(3):143-154, https://doi.org/10.1177/108705470200500302 (read 01/10/2026)
  4. Young S, Adamo N, Ásgeirsdóttir BB and others, “Females with ADHD: an expert consensus statement taking a lifespan approach providing guidance for the identification and treatment of attention-deficit/hyperactivity disorder in girls and women”, BMC Psychiatry, August 2020, 20:404, https://pmc.ncbi.nlm.nih.gov/articles/PMC7422602/ (read 01/10/2026)
  5. GOV.UK, Children with special educational needs and disabilities (SEND), https://www.gov.uk/children-with-special-educational-needs (read 01/10/2026)
  6. nidirect, Mental health emergency: if you’re in crisis or despair, https://www.nidirect.gov.uk/articles/mental-health-emergency-if-youre-crisis-or-despair (read 01/10/2026)
  7. Faraone SV, Banaschewski T, Coghill D and others, “The World Federation of ADHD International Consensus Statement: 208 evidence-based conclusions about the disorder”, Neuroscience and Biobehavioral Reviews, September 2021, 128:789-818, https://pmc.ncbi.nlm.nih.gov/articles/PMC8328933/ (read 01/10/2026)

About AuDHD Psychiatry

AuDHD Psychiatry is the trading name of ADHDdegree Ltd, a company registered in Scotland. The company number is SC822923. Our registered office is 3f1 Third Floor, Hill Street, Edinburgh, EH2 3JP.

Registered with the ICO, number ZB823033.

Last updated: 13 October 2026

About the author
Dr Darren O’Reilly
Chartered Psychologist and Clinical Director, AuDHD Psychiatry

Darren is a Chartered Psychologist and specialist in ADHD and autism, with over 11 years of experience working in mental health and neurodevelopmental services. He holds a Doctorate in Counselling Psychology and has presented research at the British Psychological Society Annual Conference.

Read Darren’s full profile

This article is for general information and does not replace a clinical assessment. If you are struggling with your mental health right now, please contact your GP or NHS 111.