What does it mean when your finger turns blue and tender for no apparent reason?

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A step-by-step "how-to" instruction.

There are two reasons:

A: Cells in your finger are dying, you should go see a doctor

B: One veine was cut open... It should resorb in a few days...

First answer by Afroxav. Last edit by Afroxav. Contributor trust: 208 [recommend contributor]. Question popularity: 1 [recommend question]