A 34-year-old member asked:
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what can cause raynaud's phenomenon?

1 doctor answer
Dr. Betty Keller
34 years experience Rheumatology
Cold and stress: We do not completely understand the cause of raynaud's, but exposure to cold and emotional stress cause spasm in the blood vessels of the hands and feet. This causes a reduction in blood flow. The lack of oxygen in the area cause the color to change to white, with continued lack of oxygen they turn blue and then red as the spasm resolves and blood flow returns.
Answered on Apr 15, 2016
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A 46-year-old member asked:
Dr. Arnold Beresh
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See below: It is a constriction of the blood vessels on exposure to cold.

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