Cold fingers: Spasm of artery in hand, Raynaud's phenomenon, can cause this and is usually precipitated by exposure to or touching something cold. Numbness in fingers can be due to carpal tunnel syndrome but color changes are uncommon. Raynaud's phenomenon may be associated with autoimmune disorders. If you note other symptoms, like joint pains,rash, consult a rheumatologist. Vasodilator medications can help
Answered 2/27/2019
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