Hematoma: It sounds like a 'subungual hematoma.' That's just blood under the nail. If the dark area is greater than half the size of the nail, it may cause problems. A doctor can puncture the nail to release the blood, and release the pressure. It's probably not an emergency right now.
Answered 9/29/2016
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4 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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