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Epilepsy: what it is, types & causes

Is Epilepsy a Neurological Disorder or a Chronic Illness?

Last updated 31 October 2026 · 8 min read · By Sarah M., Support Coordinator
In short

Is epilepsy a chronic illness? Epilepsy is a medical condition that affects the brain and causes seizures. How long it lasts and how it affects daily life differs from person to person, so your specialist is the best person to explain what it means for you.

This guide looks at the words used for epilepsy, how it is assessed in Australia and where support fits. For the basics, start with what epilepsy is.

Key points

  • Epilepsy is a medical condition that affects the brain and causes seizures, and it is one of the most common neurological disorders.
  • Epilepsy Action Australia states it is the fourth most common neurological condition, after migraine, stroke and dementia.
  • A medical specialist diagnoses epilepsy, usually after a person has had at least two unprovoked seizures.
  • The words people use for epilepsy vary, so ask your doctor what applies to you and how it affects your daily life.
Epilepsy as a chronic illness at a glance
What it isA medical condition that affects the brain and causes seizures
How commonThe fourth most common neurological condition, after migraine, stroke and dementia
Who can assess itA medical specialist, usually after at least two unprovoked seizures
When it is diagnosedSeizures can begin at any age; epilepsy is most often diagnosed in childhood and in people over 65
NDIS relevanceSupport depends on meeting the NDIS access requirements and on how epilepsy affects daily life
Official sourcesEpilepsy Action Australia and the Epilepsy Foundation

Is epilepsy a chronic illness or a chronic condition?

People use chronic illness, chronic condition and long-term condition in different ways, and none of them replaces your specialist’s advice.

  • What the sources say: the Epilepsy Foundation describes epilepsy as a medical condition that affects the brain and causes seizures (Epilepsy Foundation).
  • Ask about your own outlook: how long epilepsy lasts, and how it is managed, depends on the person and the type, so ask your specialist.
  • Use the words you prefer: some people say chronic condition, others say neurological condition or simply epilepsy; any of these is fine.
  • Keep a seizure diary: write down dates, what happened and how you felt afterwards, and take it to appointments.
  • Learn the type: our guide to the different types of epilepsy explains the main groups.

Is epilepsy a neurological disease or nervous system disorder?

Epilepsy is described as a neurological condition because it affects the brain.

WordingHow it is used
Neurological disorderThe Epilepsy Foundation says epilepsy is one of the most common neurological disorders
Neurological conditionEpilepsy Action Australia says it is the fourth most common neurological condition, after migraine, stroke and dementia (Epilepsy Action Australia)
Nervous system disorderA wider way of saying the same thing, because the brain is part of the nervous system
DiseaseSome people call epilepsy a disease; the Epilepsy Foundation describes it as a medical condition that affects the brain

To learn what happens in the brain, read how epilepsy affects the brain.

Is epilepsy a seizure disorder, a disorder or an illness?

These words overlap, and what matters is that the condition is recognised and supported.

  • Seizure disorder: a term some people use because epilepsy causes seizures.
  • Disorder: a common medical word; the Epilepsy Foundation calls epilepsy one of the most common neurological disorders.
  • Illness: some people use this word and others prefer a different one; you can choose your own language.
  • Causes and triggers: these are different questions, covered in what can cause epilepsy and what can trigger epilepsy.
  • Family history: if you wonder about genes, see whether epilepsy can be genetic.
Looking for NDIS support at home?

TQN Care support workers help with personal care, community access, respite and help around the home across Sydney, Melbourne and surrounding areas (NSW & VIC). Tell us what you need and we will call you back.

Make a referral →

Is epilepsy a mental illness?

The Epilepsy Foundation describes epilepsy as a medical condition that affects the brain.

  • How it is described: epilepsy is described as a neurological condition, so ask your doctor if you are unsure which category applies to you.
  • Both can matter: a person with epilepsy can also experience low mood or anxiety, and your GP can talk through any mental health concerns.
  • Comparing conditions: if you are also wondering about other conditions, see our guide on whether ADHD is a mental illness.
  • If you are struggling: call Lifeline on 13 11 14 any time, and call 000 if someone is in immediate danger.

Is epilepsy neurodivergent?

Neurodivergent is a broad term, and not everyone with epilepsy uses it for themselves.

  • How the word is used: it is often used to include autistic people and people with ADHD, among others.
  • Your identity: whether you describe yourself as neurodivergent is your choice.
  • Conditions can overlap: some people have epilepsy and another condition, and a specialist can explain how they interact.
  • Do not self-diagnose: a qualified health professional can assess any condition.

How epilepsy is assessed in Australia

Epilepsy is diagnosed by a medical specialist after a person experiences at least two unprovoked seizures.

  1. See your GP. Describe what happened, how long it lasted and how you felt afterwards, and bring a witness account if someone saw it.
  2. Ask for a specialist referral. A medical specialist makes the diagnosis, so ask your GP who they recommend.
  3. Keep a record. Note each seizure with the date, time and any warning signs to share at appointments.
  4. Ask about a management plan. Ask your specialist for a written plan that tells others what to do during a seizure.
  5. Call 000 in an emergency. Share the plan with the people around you so they know what to do.

Epilepsy Action Australia notes that seizures can begin at any age, while epilepsy is most frequently diagnosed in childhood and in people over 65.

Is epilepsy a chronic illness under the NDIS?

If you meet the NDIS access requirements, a plan may fund supports that help with daily life.

  • Is it a disability? Read whether epilepsy is a disability for how the NDIS and the law look at it.
  • Everyday supports: support workers can help with personal care, community access and help around the home.
  • Higher needs: for people who need closer support, see our guide to high intensity supports.
  • Safety at home: ask your support team to keep the seizure management plan somewhere easy to find.

When to talk to a GP or specialist

Talk to a doctor early rather than waiting, and call 000 in an emergency.

  • You or someone you care for has had a seizure for the first time and no cause is known.
  • Seizures are happening more often, lasting longer or changing in how they look.
  • You are unsure whether your seizure management plan is current or whether others know it.
  • Daily life, work, school or mood is being affected and you want to talk about supports.
  • You have questions about medicines; do not start, stop or change any without medical advice.
Looking for NDIS support at home?

TQN Care support workers help with personal care, community access, respite and help around the home across Sydney, Melbourne and surrounding areas (NSW & VIC). Tell us what you need and we will call you back.

Make a referral →

Your next step

If you or someone you care for lives with epilepsy and needs everyday help, TQN Care can talk through practical support at home or in the community. Our high-care and complex support workers follow the person’s own seizure management plan and work alongside their family and health team. We do not provide treatment or medical advice.

SM
Sarah M., Support CoordinatorTQN Care is a registered NDIS provider supporting people across Sydney, Melbourne and surrounding areas (NSW & VIC).
Common questions

FAQs about whether epilepsy is a chronic illness

Is epilepsy a chronic illness or a chronic condition? +

Epilepsy is a medical condition that affects the brain and causes seizures. The outlook differs for each person and type. Your specialist can explain what to expect and how it can be managed for you.

Is epilepsy a neurological disease or nervous system disorder? +

The Epilepsy Foundation says epilepsy is one of the most common neurological disorders, and Epilepsy Action Australia calls it the fourth most common neurological condition. It affects the brain, which is part of the nervous system.

Is epilepsy a mental illness? +

The Epilepsy Foundation describes epilepsy as a medical condition that affects the brain and causes seizures. Some people with epilepsy also experience mental health concerns, so talk to your GP, and call Lifeline on 13 11 14 if you need to talk to someone.

Is epilepsy neurodivergent? +

Neurodivergent is often used to include autism, ADHD and similar differences, and people use it in different ways. Epilepsy is a neurological condition, and whether you identify as neurodivergent is your own choice. A specialist can explain how any conditions you have connect.

References

Sources

  1. Epilepsy facts and statistics — Epilepsy Action Australia
  2. What is epilepsy? — Epilepsy Foundation
  3. Epilepsy Action Australia — Epilepsy Action Australia
  4. Epilepsy Foundation — Epilepsy Foundation
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