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.
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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.
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.
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.
✗ Adult ADHD: Not a separate presentation; it describes how ADHD appears in adulthood.
✗ ADHD in women: Not a female presentation. Women may have any of the three ADHD presentations.
✗ AuDHD: An informal term used when ADHD and autism occur together, not an ADHD presentation.
✗ ADD: An older term now most often used for the predominantly inattentive ADHD presentation. It is not a separate diagnosis or presentation.
✗ Executive functioning and emotional regulation: Important related areas, but not separate ADHD presentations.
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.
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.
Are “types” and “presentations” the same thing?
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Can my ADHD presentation change?
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Is combined presentation more severe?
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Is inattentive ADHD the same as ADHD in women?
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Does my presentation determine what support I need?
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Inattentive ADHD: what can it look like?
Explore the essentials
This page is part of our wider ADHD series. Each of the following articles explores one part of the topic in more detail.
Understanding the essentials
ADHD presentations
Assessment
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.
Support Resources for ADHD Simple Patients
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Australian ADHD Professionals Association, 2022. Australian evidence-based clinical practice guideline for attention deficit hyperactivity disorder (ADHD). https://adhdguideline.aadpa.com.au/
New Zealand Ministry of Health, 2025. New Zealand clinical principles framework for attention deficit hyperactivity disorder. https://www.health.govt.nz/publications/new-zealand-clinical-principles-framework-for-attention-deficit-hyperactivity-disorder
National Institute for Health and Care Excellence, 2018 (updated 2019, reviewed 2025). Attention deficit hyperactivity disorder: Diagnosis and management (NICE Guideline NG87). https://www.nice.org.uk/guidance/ng87
Centers for Disease Control and Prevention, 2026. ADHD in adults. https://www.cdc.gov/adhd/about/adhd-in-adults.html
CADDRA – Canadian ADHD Resource Alliance, 2020. Canadian ADHD practice guidelines (4.1 ed.). https://www.caddra.ca/canadian-adhd-practice-guidelines