Why do fingers change color?

Picture this: On an ordinary winter day, you go outside with your bare hands to grab your mail. When you come home, your fingers are white, almost waxy, then turn blue… and you wonder what’s going on. Is it just the cold? Or a sign of something deeper? If this phenomenon sounds familiar, it could be Raynaud’s syndrome. And it’s time to stop missing out.
When the cold causes a real blockage in your fingers
Raynaud’s syndrome isn’t just a winter nuisance. It’s a  circulatory disorder in which the small arteries that supply blood to the skin constrict excessively in the face of cold… or even stress. This phenomenon, called  vasospasm , temporarily blocks blood flow to certain parts of the body, particularly the fingers and toes.
The result  : a sudden and  dramatic discoloration . The ends turn white, or even blue, before returning to their normal color once warmed. This can last a few minutes, sometimes up to  fifteen minutes .
What symptoms should I watch for?
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