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Driving and Medical Conditions

DrivingUK-wideLast reviewed: 1 April 20256 min

Drivers have a legal duty to tell DVLA if they have a medical condition or disability that could affect their ability to drive safely. Failure to do so can invalidate your insurance, lead to prosecution, and, most importantly, put lives at risk.

Important

This is general guidance only. Road traffic law, DVLA requirements, and penalty notices can change — always check the current GOV.UK guidance or seek legal advice for your specific situation before making decisions.

Key points

  • You must notify DVLA of any medical condition that could affect your driving — the law requires this, regardless of whether your doctor tells you to.
  • Notifiable conditions include epilepsy, diabetes treated with insulin, visual impairment, certain heart conditions, sleep disorders, and many more.
  • DVLA may issue a short-period licence (1, 2, or 3 years) for conditions that can be managed, requiring you to reapply periodically.
  • Group 2 licence holders (LGV/HGV and bus drivers) face stricter medical standards than group 1 (car and motorcycle) drivers.
  • If DVLA revokes your licence on medical grounds, you can appeal to a magistrates' court within 6 months.

What Medical Conditions Must You Report to DVLA

The DVLA publishes a comprehensive guide (sometimes called "Assessing Fitness to Drive") setting out which conditions must be notified. Categories include:

  • Neurological: Epilepsy, stroke, TIA (transient ischaemic attack), brain tumour, multiple sclerosis
  • Cardiovascular: Heart attack, arrhythmias, heart failure, some valve conditions
  • Diabetes: Insulin-treated diabetes and some cases managed with certain oral medications
  • Vision: Visual acuity below 6/12 (Snellen) in the better eye, visual field defects
  • Mental health: Severe anxiety or depression affecting driving, psychosis, bipolar disorder during acute episodes
  • Sleep disorders: Untreated obstructive sleep apnoea (OSA) or excessive daytime sleepiness
  • Alcohol and drug dependency

This list is not exhaustive — check DVLA's full guide or ask your GP. Your GP has no duty to report to DVLA on your behalf — you must self-declare.

How to Notify DVLA

To notify DVLA of a medical condition:

  1. Complete the relevant medical questionnaire — available at gov.uk/health-conditions-and-driving or by calling DVLA's medical enquiry line on 0300 790 6806.
  2. Some conditions can be notified online; others require a paper form (the relevant DIAG form for your condition).
  3. DVLA may contact your GP or specialist for further information — you will be asked to consent to this.
  4. DVLA will assess the information and decide: to take no action (you continue driving), to issue a short-period licence, or to revoke your licence.

While a decision is pending, you may continue to drive unless DVLA tells you not to or your condition itself makes driving unsafe. If you are in doubt about whether you are safe to drive, stop driving and seek medical advice immediately.

Short-Period Licences

For many conditions, DVLA issues a short-period licence (1, 2, or 3 years) rather than a full licence to age 70. This means your licence is reviewed regularly. When your short-period licence expires, you must reapply and DVLA will reassess your medical fitness.

Short-period licences are common for:

  • Well-controlled epilepsy (typically licensed if seizure-free for 1 year)
  • Insulin-treated diabetes (assessed individually — some are licensed for 1 or 3 years)
  • Certain heart conditions following treatment
  • Sleep disorders following treatment (e.g., CPAP therapy for OSA)

Always ensure you reapply before your short-period licence expires — driving on an expired licence is an offence.

Appealing a DVLA Medical Revocation

If DVLA revokes your licence on medical grounds and you disagree, you can:

  1. Ask DVLA to reconsider by providing additional medical evidence (e.g., a specialist report supporting your fitness to drive).
  2. Appeal to a magistrates' court (or sheriff court in Scotland) within 6 months of the revocation decision. The court can consider all the evidence and may restore your licence.

If you are appealing, it is advisable to obtain an independent medical report from a specialist in the relevant condition. The appeal is not simply a review of DVLA's process — the court makes its own assessment of the medical evidence. Legal representation is not required but can be beneficial for complex cases.

Frequently asked questions

My GP told me I do not need to tell DVLA — is that correct?
Not necessarily. Your GP advises you on your medical condition — but the legal duty to notify DVLA rests with you, the driver. Your GP's advice is not a legal authority to continue driving. Check DVLA's own guidance for your specific condition, or contact DVLA's medical enquiries line on 0300 790 6806.
I have been diagnosed with epilepsy — when can I drive again?
For car drivers (Group 1), you must not drive for 1 year following a seizure. You may then reapply to DVLA. DVLA will assess your medical history and, if satisfied, may issue a short-period licence. For Group 2 (HGV/bus), the standards are stricter and typically require 10 years seizure-free without medication, or 5 years seizure-free on medication (depending on circumstances). Check DVLA's epilepsy guidance for the precise rules.
I have sleep apnoea — do I need to tell DVLA?
Yes, if your sleep apnoea causes excessive daytime sleepiness that could affect your driving. Untreated moderate-to-severe OSA is a notifiable condition. If you are being treated (e.g., with CPAP) and the treatment is effective in controlling sleepiness, you may be able to continue driving — but you should still notify DVLA, which will assess the position. Do not drive if you feel excessively sleepy.
What happens if I drive while knowingly unfit to do so due to a medical condition?
Driving while knowing you are not fit to drive (because of a medical condition, medication, or failure to notify DVLA) is a criminal offence under Section 92 of the Road Traffic Act 1988. This is in addition to any offence arising from an accident. Your insurance will also likely be invalidated. If you cause an accident in these circumstances, you may face serious criminal charges including dangerous driving or causing death by dangerous driving.

What to do next

  1. 1
    Notify DVLA of a medical condition

    Start the DVLA notification process online.

  2. 2
    DVLA Assessing Fitness to Drive guide

    Full DVLA medical standards for all conditions.

  3. 3
    Driving and epilepsy — Epilepsy Action

    Detailed guidance on epilepsy and driving from a specialist charity.

  4. 4
    Penalty points and disqualification

    How medical disqualification interacts with penalty points.

Official bodies and resources

National Health Service

Government

The publicly funded healthcare system in the United Kingdom, providing free healthcare for all UK residents.

Citizens Advice

Charity

Provides free, confidential, and independent advice on a wide range of issues including benefits, housing, debt, and employment.

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Disclaimer

This information is for general guidance only and does not constitute legal advice. You should seek qualified legal help if your situation requires it.