Not all ADHD looks the same. The person bouncing off the walls and the quiet daydreamer staring out the window can both have ADHD — they just have different presentations of the same condition. Here’s how the three types work.
A note on “types” vs “presentations”
The current diagnostic manual (DSM-5) describes three presentations of ADHD rather than fixed “types.” The distinction matters because your presentation can change over time — a hyperactive child may become a predominantly inattentive adult as visible restlessness turns inward. So think of these as patterns, not permanent boxes.
1. Predominantly inattentive presentation
This is what many people picture as “ADD” (an older term). It’s driven by inattentive symptoms without prominent hyperactivity:
- Difficulty sustaining attention and following through
- Easily distracted; frequently “zoning out”
- Disorganisation, forgetfulness, losing things
- Avoiding tasks that require sustained mental effort
Because it’s quiet, this presentation is the most commonly missed — especially in women and girls. Read more on the signs of ADHD in adults.
2. Predominantly hyperactive-impulsive presentation
Here, hyperactivity and impulsivity dominate, with fewer inattentive features:
- Restlessness, fidgeting, difficulty sitting still
- Talking excessively, interrupting, blurting out
- Acting on impulse; impatience and difficulty waiting
- A constant feeling of being “driven by a motor”
This presentation is more often recognised in childhood because it’s visible and disruptive.
3. Combined presentation
The most common presentation in adults, combined ADHD includes significant symptoms from both groups — the inattention and disorganisation of the first, plus the restlessness and impulsivity of the second. Most adults who are diagnosed fall here.
Why the presentation matters
Knowing your presentation helps make sense of your experience and can inform treatment and strategies — but the treatment principles are broadly similar across all three. What matters most is a thorough assessment that captures your full picture, including executive dysfunction and any co-occurring anxiety or depression.
If you recognise yourself here, try our free ADHD self-check or book a telehealth ADHD assessment to get a clear answer.
This article is general information, not medical advice. Only a qualified specialist can diagnose ADHD.