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Glossary

ADHD

What is ADHD? Learn what the term means, how it can affect adults and why a proper assessment matters. Explore the next steps for seeking medical advice.

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By Doccio Clinical Team · Sources reviewed October 2026

ADHD stands for attention deficit hyperactivity disorder, a neurodevelopmental condition involving persistent inattention and/or hyperactivity and impulsivity that affects daily functioning. It begins in childhood, although diagnosis may occur in adulthood. Similar difficulties can have other explanations, so recognising symptoms or completing a questionnaire does not establish a diagnosis.

ADHD begins in childhood, although some people are first diagnosed as adults. Receiving a diagnosis later does not mean the condition suddenly started in adult life.

What can ADHD look like in adults?

Adults may have difficulty organising tasks, managing time, remembering commitments or sustaining attention. Hyperactivity may involve restlessness rather than obvious running or climbing. Impulsivity can involve acting or speaking before considering the consequences. Healthdirect: Attention deficit hyperactivity disorder

These experiences are not unique to ADHD. Stress, poor sleep and other health conditions can also affect concentration and organisation. Clinicians consider how persistent the symptoms are, when they began, whether they occur across settings and how they affect a person's life.

People use different strategies to manage difficulties. Strong academic results or success at work do not, on their own, answer whether ADHD is present. Equally, recognising yourself in a symptom list does not establish a diagnosis.

How is ADHD assessed?

An appropriately trained clinician considers developmental history, current symptoms, functioning and other possible explanations. They may use questionnaires and information from people who know you, alongside a clinical interview. Australian ADHD guideline: How should ADHD be assessed, diagnosed, and monitored

An online screening result is not a diagnosis. Assessment may identify ADHD, another condition, several overlapping needs or a reason to gather more information. See how adult ADHD assessment works.

Is ADD different from ADHD?

ADD is an older term still used in everyday conversation. People often use it to describe difficulties with attention without prominent hyperactivity. Current diagnostic terminology uses ADHD, including a predominantly inattentive presentation.

What support is available?

Support is tailored to the person and may involve understanding the condition, practical adjustments, psychological strategies and medication where appropriate. Diagnosis does not automatically mean medication will be recommended or prescribed.

If you are concerned about possible ADHD, discuss the difficulties with a doctor. Doccio can assess whether an ADHD referral is appropriate; it does not provide ADHD diagnosis through its referral service.

Doccio's psychiatry partner is SetMind, an Australian online psychiatry practice for adults offering ADHD assessments and shared-care plans by telehealth. Your doctor can address a referral to SetMind or to any clinic you prefer; SetMind confirms its fees and any Medicare rebate in writing before you book.

Where to go next

Read about our adult ADHD assessment guide or start a Doccio referral consultation.

References

Sources reviewed October 2026.

  1. Healthdirect. Attention deficit hyperactivity disorder
  2. Australian ADHD guideline. How should ADHD be assessed, diagnosed, and monitored
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