A member asked:

Tiny skinny red veins on palm of. hands that show some times more than others? is this concerning?

A doctor has provided 1 answer

Involuntary: this is often referred to as vasomotor instability: it is involuntary, like blushing, or flushing of skin. Veins are blue. capillaries are red.

Answered 1/18/2019

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Red palms of hands big veins?

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