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Signs of ADHD in children

Restlessness, distractibility, forgetfulness, impulsivity: the signs of ADHD are varied and can resemble ordinary behaviour. What matters is their intensity, their duration and how much they affect daily life. Here are the main signs to know. Knowing these signs helps to recognise the disorder and to seek advice at the right time.

Signs of inattention

Difficulty staying focused, inattention errors, forgotten instructions, disorganisation, losing things, being easily distracted, everyday forgetfulness, avoiding tasks that require sustained mental effort. They are most noticeable in long or uninteresting tasks.

These signs are often the most long-lasting.

You will find more details in the article TDAH inattentif.

Signs of hyperactivity

Fidgeting, getting up often, running or climbing in inappropriate situations, having difficulty playing quietly, talking a lot, being constantly on the move. These signs are more visible in young children.

Our article Mon enfant ne tient pas en place expands on this advice.

Signs of impulsivity

Answering before the question has finished, having difficulty waiting their turn, interrupting or disturbing others. These behaviours can lead to conflict.

To go further, read Mon enfant coupe la parole.

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The criteria that matter

To suspect ADHD, the signs must be numerous, present for at least six months, have appeared before the age of 12, be observed in at least two settings and have an impact on the child’s life. A single sign is never enough to make a diagnosis.

These criteria are assessed by the GP.

The article Qui pose le diagnostic du TDAH covers this question in detail.

Associated signs

Difficulty managing emotions, angry outbursts, low self-esteem, sleep problems, school difficulties: these signs often accompany ADHD. These signs can also occur without ADHD.

This point is explained step by step in TDAH et colères.

Depending on age

Signs change with age. Restlessness is often more visible in young children, while inattention and disorganisation are more visible in adolescents. Support must change along with these developments.

To go further, read our article Les signes du TDAH chez l’adolescent.

When to seek advice

If your child shows several of these signs consistently, at home and at school, speak to your GP. An assessment makes it possible to put the right support in place.

We explain this point in TDAH : quand s’inquiéter.

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Frequently asked questions

What are the signs of ADHD ?

Inattention, hyperactivity and impulsivity, with associated signs such as angry outbursts. Three main groups of signs.

Which criteria matter ?

Numerous, long-lasting signs, appearing before the age of 12, present in several settings and disruptive. The signs must be long-lasting.

Do the signs change with age? ?

Yes, restlessness often decreases while inattention persists. They change with age.

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