Raynaud’s phenomenon is the short term constriction of the blood vessels to the extremities i.e. fingers and toes. The ears, nose and tongue can also be affected to a lesser extent.
Most patients with mild disease only notice skin discoloration upon cold exposure. The colour generally changes from normal skin tone to white then blue and finally red. Some will experience painful, pale cold extremities that can last minutes to hours. They may also experience mild tingling and numbness of the involved digit(s) that will disappear once the colour returns to normal.
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