Drivers should notify the Driving, Vehicle and Licencing Agency (DVLA) of two little-known health conditions they need to declare before they can continue driving.
If you've got certain kinds of health problems, such as issues with your eyesight or diabetes, it's possible that they could affect your driving ability and safety.
Therefore it's vital that you let the DVLA know of anything that could be a potential problem - and failing to do so could see you slapped with a £1,000 fine and invalid insurance.
Any driver who suffers from fits or febrile convulsions must tell the DVLA.
Febrile convulsions are fits that can happen when someone has a fever. Signs and symptoms of febrile seizures include high temperatures, followed by the person making a moaning or unusual sound or becoming stiffened and unresponsive.
These seizures are common in children but in adults, they could be a sign of another underlying health condition.
In most cases, these seizures are triggered by having a fever. The true cause of a febrile seizure is not clear, but viral and bacterial infections are usually associated with febrile seizures.
The DVLA has told drivers they must tell them if they suffer from either of the conditions.
A spokesperson said: "You can be fined up to £1,000 if you do not tell DVLA about a medical condition that affects your driving. If you’re involved in an accident, you may be prosecuted."
More information about the different medical conditions you need to tell the DVLA about can be found on the website.
It's also possible that you may need to surrender your licence if your medical condition means you don't meet the required safety standards for driving.
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