Long-term exposure to hand-arm vibration can result in a condition called Secondary Raynaud’s phenomenon, also known as vibration white finger or VWF. During an attack, which is generally worse in cold and wet conditions, reduced circulation in the fine blood vessels in the fingers causes:
- colour changes in the skin;
- a loss of feeling and sense of touch in the fingers; and/or
- considerable pain and loss of manual dexterity, often resulting in clumsiness and reduced grip strength.
Attacks may last up to an hour and, as the condition worsens, may occur even in warm surroundings. Continued exposure will progressively worsen the condition.
There is also a condition called Primary Raynaud’s phenomenon, which is present in approximately 10 percent of the population. It is generally an inherited condition, similar to Secondary Raynaud’s phenomenon, but not caused by exposure to vibration.
There is no known cure for either type of Raynaud’s phenomenon, but the condition can be eased by:
- keeping your hands as warm as possible (to promote maximum blood circulation);
- not smoking; and
- avoiding further exposure to vibration.
VWF is a reportable disease under RIDDOR, the Reporting of Injuries, Disease and Dangerous Occurrences Regulations 1995.
If you exceed the action values you will need to carry out health surveillance. Consider using the initial screening questionnaire and the annual screening questionnaire.