What is Hand Arm Vibration Syndrome (HAVS) and how to prevent it What is vibration white finger? Manifesting as tingling and numbness through to manual dexterity loss and dreaded Vibration White Finger (VWF) Hand Arm Vibration Syndrome (HAVS), both secondary forms of Raynaud's syndrome, where vibration induced spasming of small Vibration white finger: 300,000 UK workers at risk Method of scoring the areas of the digits affected by blanching, Download Scientific Diagram