In short: ADHD in children shows up as ongoing inattention, hyperactivity or impulsivity that is more than expected for their age and affects home and school. Diagnosis is by a paediatrician, child psychiatrist or psychologist.
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ADHD in children is one of the most common neurodevelopmental conditions. Symptoms must be present before age 12, last at least six months and appear in more than one setting.
ADHD symptoms in children
- Inattentive: daydreaming, losing things, not finishing schoolwork, careless mistakes
- Hyperactive: constant movement, climbing, difficulty sitting at meals or in class
- Impulsive: interrupting, blurting answers, difficulty waiting
ADHD at school
- Reports of “not reaching potential”
- Incomplete homework
- Social difficulties and conflict
How ADHD is diagnosed in children
A paediatrician, child psychiatrist or psychologist gathers history from parents and teachers (often with rating scales such as the Vanderbilt or SNAP-IV) and rules out other causes such as hearing, vision or sleep problems.
Support and treatment
- Parent training and behavioural strategies
- Classroom accommodations
- Occupational therapy where needed — see OT for kids
- Medication for some children — see ADHD medication for kids
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Sources & further reading
Last checked: 31 October 2026. If you spot something out of date, tell us.