The HGV Driver Medical Explained

Every professional lorry driver in the UK must pass a medical before they can drive, and again at set intervals as they get older. It puts a lot of new drivers on edge, but the vast majority pass with no problem. This guide explains exactly what the medical checks, what the standards are, and how to give yourself the best chance of passing first time.

Why the medical exists

Driving a 44-tonne vehicle carries more responsibility than driving a car, so professional drivers are held to a higher medical standard (Group 2). The medical is there to catch conditions that could cause a sudden loss of control, such as poor eyesight, uncontrolled diabetes, heart problems or severe sleepiness at the wheel.

What the medical checks

A doctor completes DVLA form D4 and typically assesses:

• Eyesight: visual acuity and field of vision, with or without glasses.
• Heart and circulation: blood pressure, pulse and history of heart conditions.
• Diabetes: whether it is well controlled and how it is treated.
• Neurological history: epilepsy, blackouts, strokes or fainting.
• Sleep conditions: particularly obstructive sleep apnoea and excessive daytime sleepiness.
• General health: medication, mental health, alcohol and drug history.

The check usually takes around 20 to 30 minutes. There is no fitness test or treadmill involved.

The key standards

Eyesight

This is the standard most people worry about. You must meet the Group 2 visual acuity requirement, and glasses or contact lenses are fine as long as you meet the standard while wearing them. You also need an adequate field of vision. If you wear glasses, bring your current prescription.

Blood pressure

Very high blood pressure can mean a temporary fail until it is brought under control. If your reading is borderline on the day, it is worth being calm and rested. If it is genuinely high, your GP can help you manage it and you can be reassessed.

Diabetes

Diabetes does not automatically stop you driving an HGV, but it must be well managed, especially if you are treated with insulin, where extra monitoring and reporting requirements apply.

Sleep apnoea

Obstructive sleep apnoea is taken seriously because it causes daytime sleepiness. If you have it and it is being treated effectively (for example with a CPAP machine), you can usually still drive. Undiagnosed or untreated apnoea can lead to a fail until it is sorted.

Cost, validity and renewals

From age 45 you generally renew every five years, and from 65 every year. Your first medical is required before your provisional entitlement is granted.

How to pass first time

• Bring your glasses or contacts and your current prescription if you wear them.
• Take a list of your medication with doses.
• Avoid caffeine and heavy salt before the appointment if your blood pressure runs high.
• Be rested and, if you snore heavily or feel sleepy in the day, mention it honestly so it can be assessed properly.
• Be honest. Hiding a condition risks your licence and your safety far more than declaring it.

Where to get your medical done

You have a few options, and they vary in price and speed:

• Your own GP. They know your history, but not all GPs offer HGV medicals and waiting times can be long.
• Dedicated driver-medical services. These specialise in D4 medicals, often with same-week appointments and fixed prices around £50 to £90.
• Occupational health providers used by some employers and agencies, occasionally arranged and paid for as part of taking you on.

Whoever carries it out must be a registered doctor, and they complete the D4 form which you submit to the DVLA with your D2 application.

How the medical fits the wider process

The medical is one of the earliest steps in becoming a driver. You need it before the DVLA grants your provisional lorry entitlement, so book it early rather than leaving it until the end. If you are already qualified, you will repeat the medical to renew your entitlement as you get older, so it is a normal part of a driving career rather than a one-off hurdle.

What if you do not pass?

A fail is usually temporary rather than the end of the road. Most issues, such as high blood pressure or untreated sleep apnoea, can be managed with your GP and then you are reassessed. If you have a permanent condition, the DVLA looks at each case individually. Do not be put off booking the medical: the great majority of drivers pass without any issue, and any problem it flags is usually one you would want to know about anyway.