Also called subungual hematoma
Dried blood under the fingernail can happen when an injury causes bleeding under the nail.
This is medically known assubungual hematoma.
These bleeds can result indarkened discoloration, such as black spots, and pressure and pain.
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This article will explore the treatment options for a subungual hematoma.
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Treatment
If the subungual hematoma is small, you may not need to seek medical care.
You might have a fracture.
If it is continuing to bleed, you may have a laceration which requires sutures.
It takes about 48 hours for blood at the level of the nail bed to clot.
If you wait longer than 48 hours to see a healthcare provider, drainage may not be possible.
Fortunately, the nail plate lacks nerves, so this process doesn’t hurt.
The hole created by piercing should be large enough to let the blood drain.
This takes about a day or two.
During this time, the hole through which the blood oozes should be covered with sterile gauze.
Keep in mind that it can take several months for a nail to grow back.
The nail matrix is where your fingernails and toenails form.
Causes
A subungual hematoma is usually because of a traumatic injury.
You may also experience bleeding under your toenail if you wear shoes that are too tight.
You might have a fracture.
If it is continuing to bleed, you may have a laceration which requires sutures.
If you see your healthcare provider within 48 hours, it can be drained to relieve pressure.
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