Signs of ADHD in children: what to look for

Most parents who seek an assessment have been noticing something for a while. Often it is the school that raises it first, sometimes it is a comparison with a sibling, and sometimes it is simply that ordinary days feel harder than they should.

Two different patterns

ADHD is described in two groups of symptoms, and children can show one, the other, or both. Recognising that there are two patterns explains why some children are identified early and others are missed entirely.

Inattention

• Difficulty sustaining attention on schoolwork or activities
• Appearing not to listen when spoken to directly
• Not following through on instructions, and leaving schoolwork unfinished
• Difficulty organising tasks, belongings and time
• Avoiding tasks that require sustained mental effort, such as homework
• Losing things needed for school
• Easily distracted, and forgetful in daily routines
• Making careless mistakes and missing details

Hyperactivity and impulsivity

• Fidgeting, tapping, or squirming when seated
• Leaving their seat when expected to stay in it
• Running or climbing when it is not appropriate
• Difficulty playing quietly
• Talking excessively, or seeming to be driven by a motor
• Blurting out answers before a question is finished
• Difficulty waiting their turn
• Interrupting or intruding on others

What it looks like at home

Parents rarely describe symptoms in clinical language. What they describe tends to be practical and familiar: mornings that take an hour longer than they should, homework that turns into a nightly confrontation, instructions that need repeating four times, a bedroom that never stays tidy, and a child who can focus for three hours on something they love but not for ten minutes on something they do not.

That last point causes a lot of confusion. Parents often say “it cannot be ADHD, he concentrates perfectly well on his game.” Sustained attention on something highly engaging is entirely consistent with ADHD. The difficulty is with regulating attention according to what is required, not with attention itself.

What it looks like at school

Teachers often notice things parents cannot see, which is why their input matters so much in an assessment. They see your child alongside thirty others of the same age, which gives them a reference point no parent has.

Common observations include work that is started but not finished, difficulty following multi-step instructions, a child who is bright in discussion but whose written work does not reflect it, disorganised belongings, and homework that is completed but never handed in.

This is why an ADHD assessment for a child normally includes a rating form completed by a teacher. Symptoms need to be present in more than one setting for a diagnosis, and the classroom is where the academic demands are highest.

When it is worth seeking an assessment

Every child is inattentive, restless and impulsive sometimes. That is childhood. The question is one of degree and of impact.

It is worth speaking to a clinician when the difficulties have persisted for six months or more, appear both at home and at school rather than in one setting only, seem out of step with other children of the same age, and are getting in the way of learning, friendships or family life.

Difficulties that appear only at school might point to something about the school environment, or to a specific learning difficulty. Difficulties that appear only at home may reflect something else going on. Both are worth exploring, but neither on its own points clearly to ADHD.

Things that are commonly misread

“He is just immature for his age.” Sometimes true, particularly for children who are young for their school year. But ADHD often looks like immaturity, and the two are not easy to tell apart without an assessment.

“She does well academically, so it cannot be ADHD.” Bright children often compensate for years. The cost tends to show up in effort and exhaustion rather than in grades, until the workload increases.

“It is a discipline problem.” Children with ADHD are not choosing to forget or to lose focus. Consistent structure helps a great deal, but it does not resolve the underlying difficulty, and framing it as misbehaviour tends to damage a child's confidence.

What an assessment involves

An assessment for a child is thorough, and gathers information from more than one source. It usually includes a detailed conversation with the parent covering development, birth history, medical history and school progress, structured rating scales completed by the parent, a rating scale completed by the child's teacher, and screening for other conditions that can look similar or occur alongside ADHD, such as anxiety.

The teacher's contribution is not optional. Because symptoms must be present in more than one setting, a report from school is a necessary part of the assessment.

What happens after a diagnosis

A diagnosis is a starting point rather than a conclusion. Treatment is tailored to the individual child and may involve medication, practical strategies for home and school, support in accessing educational adjustments, and regular review to see how things are working.

Many parents describe the diagnosis itself as helpful, because it changes the story the family has been telling about the child. A child who has been hearing that they are careless or not trying starts to understand that their brain works differently, and that there is help available.

This article is for general information and is not medical advice. It cannot diagnose ADHD or any other condition. Only a licensed clinician can make a diagnosis, after a full assessment. If you are concerned about yourself or your child, please speak to a healthcare professional. If you are in crisis, call 911. For mental health support, call or text 988 at any time.