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A member asked:
What could cause blood under fingernails. with no injury?
A doctor has provided 1 answer
Subungual hematoma: Blood underneath your nail is referred to as subungual hematoma. Subungual hematoma is caused by fluid (blood) accumulating under the nail bed in fingers and in toes due to a jamming of your finger or toe, dropping a heavy item on your finger or toe or repetitive stress to the nail itself. Any repetitive motion of the finger could lead to a lifting and separation of the nail from the base leading.
Answered 5/28/2020
4.9k views
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