My hands are other cold but I just looked down and one have is blue. I dont have any jewlery or anything that could be adjectives off circulation. What do I do and why is this arranged?

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Answers:    If your hand is blue, stop typing promptly and go to the emergency room.

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Response to new info: If you've had shoulder twinge all week, i.e. a completely different story than just "I'm cold and my foot turned blue." Did you do something to your shoulder? Did you fall on it? Hit it beside something? Sleep on it wrong?

If you have shoulder strain, you may have disfavour something that could be disrupting your circulation. Did you explain this to the nurse? Again, either road, probably best to go see a doctor roughly speaking this. Even more so if you did something to your shoulder and now are have poor circulation as a result.

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Its caused by poor circulation if you smoke, or are around smokers profoundly that could be causing it

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