White finger (also called ‘dead finger’ or Raynauld’s syndrome) stems from insufficient blood supply, seen as blanching. Fingers turn cold, numb, and tingle, and sensation in and control of fingers may be lost. The condition is due to closure of the digits’ arteries caused by vasospasms triggered by vibrations, particularly in the cold.
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- (no access) - 6-ERGO-CTD.pdf, p21
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