Diabetes is a common condition among professional drivers, and having diabetes does not automatically mean you cannot hold an HGV licence. However, because of the safety implications associated with blood sugar control, diabetes is closely assessed during an HGV medical. Understanding how the condition is evaluated — and how to prepare — can help drivers avoid unnecessary restrictions or delays.
At simplymedicals, we regularly assess drivers with diabetes and aim to ensure the process is clear, fair, and in line with DVLA standards.
How Diabetes Is Assessed During an HGV Medical
HGV drivers are assessed under DVLA Group 2 medical standards, which are stricter than those for ordinary car drivers. The key concern with diabetes is the risk of hypoglycaemia, which can cause dizziness, confusion, or loss of consciousness while driving.
During the medical, the clinician will ask:
- Whether you have Type 1 or Type 2 diabetes
- How your diabetes is managed (diet, tablets, or insulin)
- Whether you have had any episodes of severe hypoglycaemia
- How well you monitor your blood glucose
Drivers treated with insulin or certain medications must demonstrate good awareness of low blood sugar symptoms and regular blood glucose monitoring. Poorly controlled diabetes or recent severe hypoglycaemic episodes may lead to licence restrictions or shorter renewal periods.
Insulin-Treated Diabetes and HGV Licensing
Drivers with insulin-treated diabetes can still hold an HGV licence, but additional requirements apply. The DVLA requires evidence of stable control, regular blood glucose testing, and compliance with treatment plans.
Drivers must usually:
- Monitor blood glucose at least twice daily
- Test before driving and at regular intervals during long journeys
- Keep records of blood glucose readings
- Have no recent episodes of severe hypoglycaemia
Failure to meet these criteria does not automatically mean permanent loss of the licence, but it may result in temporary suspension until the condition is better controlled. Being honest and organised during your HGV medical is essential to ensure accurate assessment.
How to Prepare for Your HGV Medical If You Have Diabetes
Preparation makes a significant difference. Before attending your HGV medical, ensure your diabetes is well-managed and bring relevant information with you. This may include a list of medications, recent clinic letters, and blood glucose records if applicable.
Maintaining a healthy lifestyle also plays a role. A balanced diet, regular physical activity, and good sleep habits all support stable blood sugar control. Addressing issues early with your GP or diabetes nurse can prevent complications during your medical assessment.
At simplymedicals, we aim to support drivers by conducting thorough HGV medicals that meet DVLA requirements while recognising that many drivers manage diabetes safely and effectively. With the right preparation and ongoing care, most drivers with diabetes can continue working confidently and legally.
Ultimately, It all starts with your HGV medical Examinations.
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