HGV Medical: What to Expect

If you've got your first HGV medical coming up, or you're renewing after a few years and feeling a bit unsure about what's involved, you're not alone. It's one of the most common questions we hear: "What actually happens at an HGV medical?"

The short answer is that it's a straightforward, structured health assessment. It's not designed to catch you out. It's designed to make sure you're fit and safe to drive a large goods vehicle on public roads. And once you know what's coming, any nerves tend to disappear.

This guide walks you through every step, so there are no surprises on the day.

What is an HGV medical?

An HGV medical is a physical examination required by the DVLA for anyone who holds, or is applying for, a Group 2 (C or C+E) driving licence. The examination follows the format laid out on the DVLA's D4 medical form, which your doctor completes during the appointment.

You'll need an HGV medical:

• When you first apply for your provisional HGV licence (from age 18).
• At renewal every five years until you turn 65.
• Every year from age 65 onwards.

The purpose is to confirm that your vision, cardiovascular health, neurological function, and general physical condition meet the DVLA's Group 2 standards. If you'd like to understand the D4 form itself in more detail, have a look at our D4 medical form guide.

Step-by-step: what happens at your appointment

Here's what a typical HGV medical examination looks like at South Wales Driver Medicals. Every appointment follows the same careful structure, so you'll always know where you are in the process.

1. Welcome and medical history review Your doctor will start by going through your medical history. You'll be asked about any current medications, past surgeries, ongoing conditions (such as diabetes, epilepsy, or sleep apnoea), and your general health. This isn't an interrogation; it's a conversation. Be honest and open, because this information helps your doctor complete the D4 form accurately.

2. Eyesight test This is usually the first physical check. We'll cover it in detail in the next section.

3. Blood pressure measurement Your blood pressure will be taken, typically from your arm while you're seated and relaxed.

4. Urine sample You'll be asked to provide a urine sample, which is tested on the spot for sugar and protein. This helps screen for conditions like diabetes and kidney issues.

5. BMI and general physical examination Your height and weight will be recorded to calculate your BMI. The doctor will then carry out a broader physical check, including listening to your heart and lungs, checking your reflexes, and assessing your general mobility and coordination.

6. Review and completion of the D4 form Once all the checks are done, the doctor completes the D4 form. If everything is in order, you'll walk out with a completed form ready to send to the DVLA.

Our patients often tell us the whole experience is far more relaxed than they expected. As one recent visitor put it: "It wasn't a tick-box exercise. Dr. Al-Hassan was thorough but put me completely at ease."

The eyesight test

The HGV medical eyesight test is one of the parts people worry about most, but it's quite simple. You'll be asked to read a number plate from a distance of 20 metres (roughly 65 feet). This checks that your distance vision meets the minimum legal standard for driving.

You'll also have your visual acuity tested using a Snellen chart (the familiar chart with rows of letters that get progressively smaller). For Group 2 licences, the DVLA requires:

• At least 6/7.5 in your better eye.
• At least 6/60 in your other eye.

If you wear glasses or contact lenses, bring them along and wear them for the test. Your corrected vision is what matters.

If you have any concerns about your eyesight, it's worth visiting your optician before your medical. That way, you can address any prescription changes in advance rather than on the day.

Blood pressure and urine checks

Blood pressure is measured to check that your levels fall within an acceptable range for Group 2 driving. If your reading is elevated on the day, don't panic. White coat hypertension (higher readings caused by the stress of a medical setting) is very common. Your doctor may take a second reading after you've had a few minutes to relax.

If your blood pressure is consistently above the DVLA's threshold, your doctor may recommend you follow up with your GP before the form can be completed. This isn't a failure; it's a safeguard.

The urine test is a simple dipstick analysis. It screens for glucose (which may indicate diabetes) and protein (which may suggest kidney problems). The result is available within moments.

What could delay your medical?

Most people sail through their HGV medical without any issues at all. However, there are a few things that can cause a delay:

• Uncontrolled high blood pressure. If your reading is too high and a second attempt doesn't bring it down, you may need to see your GP first.
• Undisclosed medical conditions. If you have a condition you haven't mentioned (or one you weren't aware of), further investigation may be needed before the D4 can be signed off.
• Eyesight below the required standard. If you can't meet the vision requirements, even with correction, the form cannot be completed on the day.
• Forgetting to bring the right documents. Without your D4 form and valid photo ID, the appointment can't go ahead. More on that below.

It's worth saying clearly: the medical is not designed to trip you up or "fail" you. The vast majority of drivers who come through our doors leave with a completed form the same day.

How to prepare

A little preparation goes a long way towards a smooth appointment:

• Stay hydrated. Drink water beforehand so you can provide a urine sample without difficulty.
• Take your usual medications. Don't skip any prescribed medication on the day of your medical.
• Avoid caffeine and heavy exercise in the hour before your appointment, as both can temporarily raise your blood pressure.
• Wear your glasses or contact lenses if you normally use them for driving.
• Know your medical history. If you take regular medication, know the names and dosages. If you've had surgery or a hospital stay, have the approximate dates in mind.

What to bring

Having everything ready before you arrive means we can get straight into the examination without any holdups.

How long does it take?

An HGV medical at South Wales Driver Medicals typically takes around 10 minutes. That might sound quick, but don't mistake efficiency for being rushed. Dr. Al-Hassan is known for being meticulous and unhurried; he simply knows the process inside out after performing thousands of these examinations.

As one of our patient reviews puts it: "Seen on time, very thorough, and the doctor was incredibly polite and well-mannered. The whole thing was done properly but I wasn't kept waiting around."

Dr. Al-Hassan

Medical Director & DVLA-approved examiner

Dr. Al-Hassan is a GMC-registered doctor and the Medical Director of South Wales Driver Medicals. He has performed thousands of DVLA D4 medicals for HGV, PCV, LGV, and taxi drivers, and is known by his patients for being thorough, unhurried, and putting people at ease.

GMC #6487521 · Verify on the GMC register

FAQs

Can I fail an HGV medical?

There's no pass or fail in the traditional sense. If a health concern is identified, your doctor will explain what needs to happen next, whether that's a GP referral, further tests, or a short delay while a condition is brought under control. Most issues are temporary and resolvable.

How much does an HGV medical cost?

Do I need to see my own GP for an HGV medical?

No. Any GMC-registered doctor can carry out an HGV medical and complete the D4 form. You don't need to go through your GP surgery, and in most cases booking with a specialist provider like SWDM is quicker and more convenient. We have clinics across South Wales, including Cardiff, Swansea, Newport, Bridgend, and Bristol.

What if my blood pressure is high on the day?

Your doctor will usually take a second reading after a short rest. If it's still elevated, you may be advised to visit your GP for monitoring before the D4 can be completed. This is quite common and nothing to worry about.

Is the HGV medical the same as a D4 medical?

Yes. The HGV medical follows the D4 medical form, which is the standard DVLA form for all Group 2 licence medicals, including HGV, LGV, and PCV. The examination itself is identical regardless of which Group 2 licence you hold.

Can I book on the same day?

We often have same-day and next-day availability. The quickest way to check is to book your HGV medical online or call us on 02920 30 90 76.

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If you have any questions before your appointment, or you're ready to book, you can find all available dates and clinic locations on our HGV medical booking page.