Circle of blood: A small circle of blood (a clot) under a nail - from trauma - is unsightly but not dangerous. With no treatment it grows out in a month or so. In an emergency room - completely painless - no anaesthesia needed - a doctor can burn a hole (with a hot paper clip in the nail and drain the blood completely. The hole grows out in a month. Peter wilk, md.
Answered 6/17/2014
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