Hematoma: Dark blue spot signifys deep bleeding into the skin. If this is new it can be a bruise that you do not remember. If this is present longer a shave biopsy can remove a portion of the spot to confirm it is not atypical lesion such as an acral lentiginous melanoma.
Answered 3/2/2013
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4 doctors weighed in across 2 answers
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A doctor has provided 1 answer
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