If you’ve been told you have ADD while someone else has ADHD, you might assume they’re two different things. They’re not. ADD (Attention-Deficit Disorder) is simply the older, retired name for what is now all called ADHD — the difference is one of terminology and era, not of two separate conditions.
What people usually mean by "ADD" today is ADHD without the obvious hyperactivity — the inattentive presentation. If any of this sounds like you, the adult ADHD screening based on the WHO ASRS is a quick, private first step.
| Aspect | ADD (older term) | ADHD (current term) |
|---|---|---|
| Status | Retired since 1994 | Current diagnosis (DSM-5) |
| What it means | Attention problems without hyperactivity | Umbrella term with three presentations |
| Hyperactivity | Implied absent | Present, absent, or combined |
| Modern equivalent | ADHD, inattentive presentation | Inattentive / hyperactive-impulsive / combined |
| Still used? | Colloquially, yes | The official term clinicians use |
ADD isn’t a milder cousin of ADHD — it’s the same condition, still wearing its old name.
Why the name changed
In 1987 the diagnostic manual folded "ADD" into "ADHD" and, since 1994, has described three presentations under that one name: predominantly inattentive, predominantly hyperactive-impulsive, and combined. So the thing once called ADD is now "ADHD, predominantly inattentive presentation".
The change matters because the old name made hyperactivity sound optional-or-absent, which quietly wrote off the many people — often women and girls — whose ADHD is mostly inattentive and easy to miss.
Which one should you look into?
If you mainly struggle with focus, organization, and follow-through rather than visible restlessness, you’re describing what used to be called ADD and is now inattentive ADHD. The screening and the path to assessment are the same either way — start with the adult ADHD test, then take the result to a professional.
Common questions
- Is ADD still a real diagnosis?
- No. It was merged into ADHD decades ago. Clinicians diagnose "ADHD, inattentive presentation" for what people used to call ADD.
- Can you have ADHD without being hyperactive?
- Yes — the inattentive presentation involves attention and executive-function difficulties with little or no hyperactivity.
- Does the difference change treatment?
- Treatment is tailored to your specific symptoms and presentation, not to the old label. The underlying options are the same.