Types of ADHD

Types of ADHD

ADHD can look different from one person to another. For some people, the main difficulties involve attention, organisation and completing tasks. For others, restlessness, increased activity or acting too quickly may be more noticeable. Some people experience persistent features from both symptom groups.

ADHD can look different from one person to another. For some people, the main difficulties involve attention, organisation and completing tasks. For others, restlessness, increased activity or acting too quickly may be more noticeable. Some people experience persistent features from both symptom groups.

ADHD can look different from one person to another. For some people, the main difficulties involve attention, organisation and completing tasks. For others, restlessness, increased activity or acting too quickly may be more noticeable. Some people experience persistent features from both symptom groups.

In everyday language, the inattentive, hyperactive-impulsive and combined presentations are often called types of ADHD. In clinical settings, however, presentation is the more accurate term.

In everyday language, the inattentive, hyperactive-impulsive and combined presentations are often called types of ADHD. In clinical settings, however, presentation is the more accurate term.

In everyday language, the inattentive, hyperactive-impulsive and combined presentations are often called types of ADHD. In clinical settings, however, presentation is the more accurate term.

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Psychologist & Behaviour Analyst

Types of ADHD: what you need to know
ADHD can present in three main ways: predominantly inattentive, predominantly hyperactive-impulsive, or combined.
A presentation describes whether inattentive features, hyperactive-impulsive features, or both are more prominent. It is not a personality type and, by itself, does not indicate how significantly ADHD affects someone’s everyday life.
A combined presentation is identified when the relevant criteria are met for both the inattentive and hyperactive-impulsive symptom groups.

What does a presentation mean?

What does a presentation mean?

What does a presentation mean?

A presentation is not a rigid category. The word “type” may suggest that ADHD places people into three permanent and clearly separate groups. It may also create the impression that a type fully explains all of someone’s difficulties or predicts how they will function in every situation. For this reason, a presentation is a clinical description, not a personality label. It does not describe someone’s intelligence, values or abilities. Difficulties may affect work, study and relationships in different ways. As a result, different forms of support may be helpful.

The three ADHD presentations

The three ADHD presentations

The three ADHD presentations

Predominantly inattentive presentation

In this presentation, the main difficulties involve sustaining attention, organising tasks and completing them. Someone may frequently miss details or deadlines, forget to return calls or pay bills, and regularly search for their keys or phone. Starting and completing longer tasks may also be difficult. Restlessness or impulsivity may still occur, but they do not form the predominant pattern.

Inattentive ADHD →

Predominantly hyperactive-impulsive presentation

Restlessness, a strong need for activity and responding before there has been time to pause are usually more noticeable. In adults, this does not always appear as constant physical movement. Someone may interrupt more easily or find it difficult to wait their turn. It may appear as excessive talking, fidgeting or difficulty remaining seated for extended periods. Inattentive features may also occur, but they generally remain less prominent.

Hyperactive-impulsive ADHD →

Combined presentation

A combined presentation does not mean “double ADHD”, and it is not necessarily more severe than the other two presentations. The same person may experience both inattentive and hyperactive-impulsive features, although these may not appear equally strongly in every situation. For example, someone may lose track during a meeting and then suddenly interrupt when an idea comes to mind.

Combined ADHD presentation →

Predominantly inattentive presentation

In this presentation, the main difficulties involve sustaining attention, organising tasks and completing them. Someone may frequently miss details or deadlines, forget to return calls or pay bills, and regularly search for their keys or phone. Starting and completing longer tasks may also be difficult. Restlessness or impulsivity may still occur, but they do not form the predominant pattern.

Inattentive ADHD →

Predominantly hyperactive-impulsive presentation

Restlessness, a strong need for activity and responding before there has been time to pause are usually more noticeable. In adults, this does not always appear as constant physical movement. Someone may interrupt more easily or find it difficult to wait their turn. It may appear as excessive talking, fidgeting or difficulty remaining seated for extended periods. Inattentive features may also occur, but they generally remain less prominent.

Hyperactive-impulsive ADHD →

Combined presentation

A combined presentation does not mean “double ADHD”, and it is not necessarily more severe than the other two presentations. The same person may experience both inattentive and hyperactive-impulsive features, although these may not appear equally strongly in every situation. For example, someone may lose track during a meeting and then suddenly interrupt when an idea comes to mind.

Combined ADHD presentation →

A presentation describes a pattern, not a person
A presentation does not define your personality.
By itself, it does not indicate how intelligent, creative, sociable or successful you are.
ADHD features do not appear in the same way in every situation.
It does not automatically determine what kind of support you may need.

What is not a separate ADHD presentation?

What is not a separate ADHD presentation?

What is not a separate ADHD presentation?

✗ Adult ADHD: Not a separate presentation; it describes how ADHD appears in adulthood.

ADHD in adults →


✗ ADHD in women: Not a female presentation. Women may have any of the three ADHD presentations.

ADHD in women →


✗ AuDHD: An informal term used when ADHD and autism occur together, not an ADHD presentation.

ADHD and autism →


✗ ADD: An older term now most often used for the predominantly inattentive ADHD presentation. It is not a separate diagnosis or presentation.

Inattentive ADHD →


✗ Executive functioning and emotional regulation: Important related areas, but not separate ADHD presentations.

ADHD symptoms →

✗ Adult ADHD: Not a separate presentation; it describes how ADHD appears in adulthood.

ADHD in adults →


✗ ADHD in women: Not a female presentation. Women may have any of the three ADHD presentations.

ADHD in women →


✗ AuDHD: An informal term used when ADHD and autism occur together, not an ADHD presentation.

ADHD and autism →


✗ ADD: An older term now most often used for the predominantly inattentive ADHD presentation. It is not a separate diagnosis or presentation.

Inattentive ADHD →


✗ Executive functioning and emotional regulation: Important related areas, but not separate ADHD presentations.

ADHD symptoms →

Can more than one presentation feel familiar?

Can more than one presentation feel familiar?

Can more than one presentation feel familiar?

The two main symptom groups are not completely separate. For instance, someone with a predominantly inattentive presentation may lose track of a conversation or later forget a task they were asked to complete. They may still experience restlessness or impulsivity at times. Someone with a predominantly hyperactive-impulsive presentation may be more likely to find it difficult to sit still or to interrupt others. They may also occasionally forget an important detail or appointment. For the combined presentation, the frequency and duration of features in both groups, as well as the number of settings in which they occur, are key. This is why a short description or online questionnaire cannot reliably determine someone’s presentation.

Features alone do not define a presentation

  • Someone can experience features from both symptom groups without meeting the criteria for a combined presentation.

  • Frequency, duration, daily impact and the number of settings affected all matter.

  • A short description or online questionnaire cannot reliably identify someone’s presentation.

Why can an ADHD presentation change over time?

Why can an ADHD presentation change over time?

Why can an ADHD presentation change over time?

A change in presentation does not mean that an earlier diagnosis was incorrect. Some people may receive considerable support from childhood, whereas others may spend years trying to mask their difficulties on their own. The demands of life can also change. In adulthood, people often need to manage deadlines, bills and everyday responsibilities more independently. As a result, different features may become more noticeable than they were earlier in life. Visible physical activity may decrease, while inner restlessness, forgetfulness and organisational difficulties remain. A few stressful weeks or a period of insufficient sleep may temporarily intensify inattentiveness and restlessness. However, this does not automatically mean that someone’s ADHD presentation has changed. Instead, it shows why the way ADHD appears should always be understood within the person’s broader circumstances.

When ADHD looks different over time

  • Different responsibilities and levels of support can bring different ADHD features to the foreground.

  • A change in presentation does not mean that an earlier diagnosis was incorrect.

  • Stress or insufficient sleep may temporarily intensify difficulties without changing the presentation.

How is presentation considered during an assessment?

How is presentation considered during an assessment?

How is presentation considered during an assessment?

Clarifying the presentation is one part of an ADHD assessment. The health professional does not simply ask someone to choose between three types. Instead, they explore whether inattentive features, hyperactive-impulsive features, or both symptom groups form a persistent pattern.

As part of this process, they consider whether the features:

  • have been present over an extended period and can be traced back to childhood;

  • appear in more than one setting, such as at home, while studying or at work;

  • frequently lead to forgotten tasks, lateness, unfinished work or other difficulties in everyday functioning;

  • relate mainly to inattentiveness, hyperactivity and impulsivity, or to both symptom groups.

The health professional also considers sleep, stress, anxiety and other possible explanations, rather than looking only at ADHD features.

How does an ADHD assessment work? →

Are “types” and “presentations” the same thing?

Can my ADHD presentation change?

Is combined presentation more severe?

Is inattentive ADHD the same as ADHD in women?

Does my presentation determine what support I need?

What support can involve

What support can involve

What support can involve

A presentation describes one part of the symptom pattern and gives only limited information about the whole person. It therefore does not, by itself, determine a fixed package of support. Two people with a predominantly inattentive presentation may experience very different difficulties. One may regularly miss deadlines, leave projects unfinished or forget to return calls. Another may struggle more with organising household tasks, frequently losing belongings or following conversations. Support should therefore be tailored to the difficulties that have the greatest impact on everyday life. It may involve:

  • support with attention, planning and completing tasks;

  • strategies for managing restlessness and impulsivity;

  • workplace or study adjustments, such as written instructions or fewer distractions;

  • psychoeducation, ADHD coaching or psychotherapy;

  • support for sleep difficulties, ongoing stress or co-occurring anxiety;

  • discussing medication, when appropriate and when the person wishes to consider it.

The aim is to reduce everyday difficulties and make ADHD features easier to manage, not to hide them.

Medication pathway →

Not sure where to start? Our free five-minute ADHD screener may provide a useful indication and some preliminary information. A screener is not a diagnosis and cannot replace a consultation with a suitably qualified health professional.

Ready to learn more about ADHD assessment?
Connect with a suitably qualified health professional who can help you explore what may be contributing to your experiences and whether a full ADHD assessment could be helpful.
Inattentive ADHD: what can it look like?

Not sure how inattentive ADHD may appear in everyday life? Learn about common patterns, why they can look different from person to person, and when an assessment may be worth considering.

Inattentive ADHD →

This page provides general information only.
It cannot determine whether you have ADHD and it does not replace a full assessment by a suitably qualified health professional with training and experience in ADHD.

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