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The HGV Medical Explained


The HGV Medical Explained

A HGV Medical is done via a D4 form that provides the DVLA with details of your physical condition. This enables the DVLA to make a decision regarding your fitness to operate a motor vehicle on public roads in Britain.

The HGV Medical examination is comprised of two parts;

the interview and the physical and mental examination. You will need to submit the D4 Medical paper in order to apply for your provisional or renewal of entitlement for HGV or Bus

What’s Checked During The Medical?


Eyesight is by far the most important aspect that every driver shouldn’t have any issue with. If a driver has a significant eyesight issue, they will pose a major threat to themselves and other drivers on the road. Therefore, every driver needs to pass their eyesight examination to ensure that they can see the road clearly both during the night and the day time. The examination will include peripheral vision, checking for double vision and general eyesight (visual acuity) to assess a candidate’s fitness to operate a motor vehicle safely. If you wear glasses please bring these with you with a glasses prescription.

Neurological Problems

Neurological issues may affect how the driver reacts to a given stimulus. For example, if a driver has a particular neurological condition, they may have a slower response time or they may freeze when they see a bright headlight. Therefore, the doctor needs to make sure that the applicant responds appropriately to every given situation to ensure that they can do the same while they’re on the road.

Mental Health

Another important consideration that a doctor needs to examine when it comes to HGV Medicals is the mental health of the driver. Some psychological issues may cause the driver to be more prone to making dangerous situations. This is especially important, as HGV vehicles are heavier and larger than typical cars, which means that they can cause much more significant damage. Psychological issues such as severe chronic anxiety, severe depression, and mental conditions such as schizophrenia need to be treated before the driver can pass HGV Medicals examinations.

Substance Abuse History

Substance abuse is something that an HGV driver cannot have, so they will need to show that they have gone through a rigorous rehab to ensure that they have achieved complete sobriety. Therefore, if you have a history of alcoholism or drug abuse, you will have to make sure that you have evidence to prove that you have sorted that issue before applying for their HGV driver’s licence.


Diabetes can have a direct effect on one’s ability to operate a HGV vehicle, it can affect your energy level when it comes to long drives and certain medications can cause your blood sugar to drop. Therefore, our medical staff needs to make sure that each driver is in the state to operate a motor vehicle safely. They also need to know how to manage their diabetes and not allow it to affect them while they are on the road.

Heart Conditions

You never know what you’re going to encounter in the open road, which is why the risk of a driver of a multi-tonne vehicle having a heart attack during a suspenseful drive needs to be prevented. If the driver’s heart condition is not ideal or if they have a history of heart attacks, the driver may need further investigations done by the DVLA e.g. an exercise ECG. This shouldn’t stop you from applying as if the scans are normal you will be able to drive.

Sleep Disorders

HGV drivers will have to drive long hours, sometimes throughout the night. They need to be able to sleep properly when they get the opportunity to do so. Therefore, if the driver has a history of sleep disorder, their HGV driver’s licence may be rejected until the condition is treated.

These are some of the health concerns that will need to be assessed for in order for a driver to pass the HGV Medicals. Although it may seem cumbersome, it’s necessary that it is done thoroughly to protect other drivers from major dangers.

Next Steps

For anymore information, or if you would like us to book you medical for you please do get in touch

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