Hand Arm Vibration Syndrome (HAVS) Hand Arm Vibration Syndrome Causes and Prevention NASP VIBRATION WHITE FINGER: THE INCURABLE CONDITION THAT GETS WORSE WITH AGE. 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 Method of scoring the areas of the digits affected by blanching, Download Scientific Diagram