ADHD in adults: often a late diagnosis
When inattention and impulsivity persist into adulthood
Dr. Lila Aubry
Psychiatrist

In simple terms
Methylphenidate, CBT, organization: understanding and supporting adult ADHD.
Persistence into adulthood
ADHD persists into adulthood in 50-65% of affected children. Adult prevalence: 2-3%. Often underdiagnosed, leading to professional, relational difficulties and an increased risk of addictions.
Adult symptoms
- Inattention: forgetfulness, procrastination, disorganization, distractibility
- Hyperactivity: internal restlessness rather than motor activity
- Impulsivity: rash decisions, interruptions, risk-taking
Diagnosis
Evaluation by a trained psychiatrist: structured interview, validated scales (DIVA, ASRS), exploration of comorbidities (anxiety, depression, addictions, sleep disorders).
Treatments
Methylphenidate and amphetamines (lisdexamfetamine): first-line. Atomoxetine as a non-stimulant alternative. ADHD-adapted CBT, coaching, organizational tools. Lifestyle: sleep, exercise, regular eating.
The words explained
Medical terms used above, in everyday language.
- Symptom
- A sign you can feel or see that something is wrong, like pain, tiredness or a rash.
- Diagnosis
- The moment a doctor identifies which illness is causing your symptoms.
- Anxiety
- Ongoing worry or fear that is strong enough to affect daily life.
When should you see a doctor?
- Your symptoms last more than a few weeks or keep coming back.
- They get worse quickly, or stop you doing everyday things.
- You notice sudden pain, breathing trouble, fainting or bleeding — seek urgent care.
- You already take medication and want to change anything about it.
This article explains general health information. It does not replace advice from your own doctor.
Frequently asked questions
- What is ADHD in adults: often a late diagnosis?
- Methylphenidate, CBT, organization: understanding and supporting adult ADHD.
- What are the main symptoms or signs of ADHD in adults: often a late diagnosis?
- Common signs vary from person to person. The article above lists the symptoms to watch for, how they progress, and when they need medical attention.
- When should you see a doctor for ADHD in adults: often a late diagnosis?
- See a doctor if symptoms last more than a few weeks, get worse quickly, stop you doing everyday things, or if you notice sudden pain, breathing trouble, fainting or bleeding.
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