Minor subungual hematomas will usually heal on their own, but if the area of discoloration is greater than 50% of the nail bed, if the bleeding does not stop, or if the pain becomes unbearable, then a doctor should investigate. If the cause is a crush injury, there could be other damage to the digit. Doctors may order x-rays to identify fractures. If a baby or child develops a hematoma of any size, they should be taken to the doctor.

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