HAVS (Hand Arm Vibration Syndrome) Assessments
HAVS (formerly known as white finger syndrome) and CTS (carpal tunnel syndrome) are conditions affecting an employee’s hands and arms related to their exposure to vibration. Regular and frequent exposure to vibration may lead to disabling neurological (tingling and numbness) and vascular (blanching) symptoms which can significantly impact upon an employee’s day to day activities both in and out of work.
About HAVS assessments
Long term exposure to vibrating tools, including demolition equipment, impact drivers, grinders, jet wash lances, hand-guided equipment etc. or holding materials being processed by machines (such as pedestal grinders) may affect the tiny blood vessels, nerves and muscles of the hands and fingers.
Although occasional exposure is unlikely to cause ill health, the severity of the condition increases with increased exposure and any resulting ill health is irreversible and treatments for the symptoms limited.
Different tiers of HAVS assessment
Sometimes an employee may be referred for a further HAVS assessment following a medical (HAVS Tier 2).
This further assessment process is designed to identify the potential signs and symptoms of HAVS at an early stage and is crucial to preventing serious long-term ill health effects
A HAVS Tier 3 assessment is undertaken by a HAVS trained nurse or experienced occupational health technician and will involve taking a clinical history (asking detailed questions about exposure and symptoms) from your employee, an examination of their hands/arms and assessment of their grip strength and dexterity as required.
A HAVS Tier 4 assessment is undertaken by a HAVS trained doctor (Occupational Health Physician) and involves taking a clinical history and examination (as above) and usually follows a Tier 3 assessment. It is the OHP’s role to diagnose HAVS where applicable and provide specific guidance to the employer in writing.
Early Symptoms of HAVS
Recognising the early signs of HAVS is crucial for preventing permanent damage. Symptoms can develop gradually and worsen over time if exposure continues. Early symptoms to be aware of include:
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Tingling and numbness in the fingers, especially at night
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Loss of grip strength, making it harder to hold tools or perform precise tasks
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Fingers turning white (blanching) in cold conditions, then becoming red and painful when warmed up
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Reduced sensitivity to touch, heat, or cold
If left untreated, HAVS can progress to permanent numbness, severe pain, and loss of hand function.
FAQs
How often should employees undergo a HAVS assessment?
The frequency depends on the level of vibration exposure. High-risk employees should have annual assessments, while lower-risk workers may require assessments less frequently.
What happens if HAVS is detected?
If early symptoms are identified, we provide recommendations to reduce exposure, adjust work practices, and seek medical advice if necessary.
Is a HAVS assessment mandatory?
For employees exposed to significant vibration levels, assessments are required under the Control of Vibration at Work Regulations 2005 to ensure compliance and worker safety.
What should employers do if an employee is diagnosed with HAVS?
Employers must take action to reduce exposure, provide alternative duties if necessary, and ensure compliance with health and safety regulations.
Explore our related services
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