What are the 3 types of ADHD?

The three DSM-5 presentations of ADHD are inattentive type, hyperactive-impulsive type, and combined type, which involves significant traits of both.

Is ADD the same as ADHD?

ADD was the old term for what is now called inattentive-type ADHD. The DSM stopped using ADD as a separate diagnosis in 1994 - it's now one of the three ADHD presentations.

Which type of ADHD is most common in adults?

Combined type is the most commonly diagnosed presentation in adults, though inattentive type is frequently missed or diagnosed later, especially in women.

ADHD Foundations

The 3 Types of ADHD Explained

8 min read · Medically-informed guide

ADHD isn't one single set of symptoms. Under the DSM-5, ADHD is diagnosed as one of three distinct presentations - and knowing which one describes you changes almost everything about how you should manage it.

1. Inattentive Type (previously called "ADD")

Trouble with focus, organisation, and finishing tasks, without much visible hyperactivity. This type is frequently missed - especially in girls and women - because it doesn't match the "hyperactive boy" stereotype most people associate with ADHD.

Common signs: missing details, losing track of conversations, misplacing things constantly, feeling chronically forgetful, being labelled a "daydreamer."

2. Hyperactive-Impulsive Type

Physical restlessness, difficulty sitting still, interrupting, and blurting things out. This is the presentation most people picture when they think of ADHD, and it's usually more visible in childhood.

Common signs: fidgeting, feeling "driven by a motor," impulsive decisions, talking over people, difficulty waiting your turn.

3. Combined Type

Significant traits of both inattentive and hyperactive-impulsive presentations. This is the most commonly diagnosed type in adults - most people who get an adult ADHD diagnosis today fall into this category.

Why the distinction actually matters

The type you have should shape the strategies you use:

Inattentive type tends to benefit most from external structure - visual reminders, written checklists, and environment design that removes the need to "just remember."
Hyperactive-impulsive type tends to benefit most from movement-based outlets and impulse-control practice - regular exercise, fidget tools, and building in deliberate pauses before reacting.
Combined type usually needs a mix of both approaches, adjusted to whichever traits are strongest for you personally.

Was ADD ever a real diagnosis?

Yes - ADD (Attention Deficit Disorder) was the official term before 1994, when the DSM-IV merged it into ADHD's three presentations. If you were diagnosed with "ADD" as a kid in the 80s or early 90s, what you have is what's now called inattentive-type ADHD. The underlying condition never changed, just the terminology.

How to find out which type you might have

A proper diagnosis requires a qualified clinician, but a good starting point is an evidence-based self-screening tool that separates out inattentive, hyperactive, and impulsive traits individually - so you can see which cluster is strongest for you before ever speaking to a doctor.

See your own trait breakdown

Our free 18-question quiz scores you across inattentive, hyperactive, and impulsive traits separately, so you can see exactly which pattern fits you.

Take the Free ADHD Quiz

This article is for informational purposes only and is not a medical diagnosis. Only a qualified healthcare professional can diagnose ADHD. If you're concerned about ADHD, please consult a GP or clinician.