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How To Clean Blood Under Nail

Subungual Hematoma Facts

Pictured is a subungual hematoma three-and-one-half weeks after the original injury.

Pictured is a subungual hematoma three-and-one-half weeks later the original injury.

  • A subungual hematoma is a collection of claret in the space between the nail bed and fingernail or toenail.
  • Subungual hematomas result from a direct injury to the claret vessels under the fingernail or toenail.
  • The pressure generated past this collection of blood nether the nail causes intense hurting.
  • Subungual hematoma is a common type of fingertip injury.

What Causes a Subungual Hematoma?

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  • Subungual hematomas most ordinarily form afterward a crush injury to the tip of the finger or toe.
  • This injury tin can occur in many ways:
    • Hitting your finger with a hammer
    • Dropping a heavy object on your toe
    • Endmost your finger in a door

What Are Subungual Hematoma Symptoms and Signs?

  • Blood underneath a fingernail or toenail is a subungual hematoma.
    • You will take a discoloration of carmine, maroon, bluish-black, or other dark colour beneath the nail subsequently an injury.
  • The most mutual symptom is intense pain.
    • Pressure generated between the boom and the nail bed, where the claret collects, causes this pain.
    • The hurting may also be caused by other injuries such as a tuft fracture (interruption) to the underlying bone, a cut in the nail bed, or bruising to the finger or toe itself.

When to Seek Medical Treat a Subungual Hematoma

If the hurting is mild and the hematoma (blood drove) is less than 25% of the area under the nail, then home care tin exist considered.

If the hematoma is 50% or more of the underlying nail surface area, then medical attention is required.

If the injury that causes the subungual hematoma is severe plenty to cause intense pain and tenderness, seek medical attention. The machinery of injury for this condition can crusade a fracture to the bone at the end of the finger (distal phalanx fracture) or toe or a laceration to the nail bed nether the nail that may require further medical attending or nail removal.

How Practise Medical Professionals Diagnose a Subungual Hematoma?

  • X-ray
    • A wellness intendance professional person may take an 10-ray to expect for a fracture (break) to the underlying bone.
    • Ten-rays do not provide any data regarding the haemorrhage or hematoma formation underneath the boom.
  • Nail bed evaluation
    • Depending on the type of injury and the caste of the injury and how much blood forms nether the nail, the doctor may decide to remove the nail to check the nail bed for lacerations (cuts). While it used to be customary to take the nail removed to examine the nail bed for lacerations or injuries, this is no longer routine practice if the blast edges or margins are intact.

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What Are Subungual Hematoma Abode Remedies?

  • Ice, peak (keeping your arm or leg above the level of your middle), and over-the-counter (OTC) pain medications are recommended for minor hematomas. Wrap ice in a towel and do not apply ice directly to skin. A bag of frozen vegetables (corn or peas) wrapped in a towel works well.
  • If the hematoma involves more 50% of the area of the nail, seek medical attention.
  • If the nail was removed by the injury and the nail bed wasn't cut, the following home treatment is recommended until the nail bed begins to exist less sensitive, usually in seven to 10 days.
    • Twice daily soaks with antibacterial soap and h2o for 10-15 minutes
    • Afterwards soaks, apply over-the-counter antibiotic ointment and a dry out, sterile cast (Rough-and-tumble).

What Are Handling Options for a Subungual Hematoma?

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  • There are several techniques to bleed the claret beneath the nail. Boom trephination or releasing the hematoma are other names for this process.
    • No single technique is preferred.
    • How your hematoma is drained depends on the experience of the doctor and where it is done.
  • Occasionally, a doctor will numb the finger or toe with a digital block . (Your fingers and toes are called digits.) Some doctors (health care professionals) opt not to numb upwards the digits every bit the injection itself can crusade as much if non more hurting than the actual drainage of the hematoma.
    • A medical professional person volition inject numbing medication such as lidocaine is injected at the bottom of your finger or toe.
    • Injecting the medication here numbs the entire digit.
    • Equally soon equally your finger or toe is numb, the procedure can take identify.
  • The following are commonly used treatment options for draining your hematoma (boom trephination):
    • Electrocautery: A battery-operated device burns a pigsty in the nail until the claret is reached and drains out of the hole. This technique should not exist used if the patient is wearing artificial acrylic nails which might be flammable.
    • Needle: A large diameter needle (such as an eighteen-guage needle) is used to drill or bore into the nail to create a hole to allow the claret to drain out.
    • Paper prune cautery: Some practitioners still apply this technique, although an older one. A paper clip is opened and then that the pointed end is free. Then the pointed stop is heated up, usually by passing information technology through a flame, and used to fire through the boom. This technique uses a combination of the cautery method and the needle method.

Subungual Hematoma Follow-up

  • Afterwards the subungual hematoma has been drained, follow-up is commonly non necessary.
  • Antibiotics are not routinely needed later on a subungual hematoma is drained, as infections are uncommon.
  • If the nail was removed and a cutting in the nail bed was stitched closed, you should meet your dr. in 48-72 hours for re-examination.
    • Usually, the type of sutures (stitches) placed volition dissolve, so removal is not needed.
    • If non-dissolvable sutures (nylon) are placed in a nail bed laceration, they need to be removed in about seven days in the emergency department or past your doctor.
    • Close monitoring is still recommended.
    • If there is a splint over the injury, keep it clean and dry out.

Is Information technology Possible to Foreclose a Subungual Hematoma?

Use common sense and practice other safety-minded actions to forestall getting your fingers slammed in doors or dropping heavy objects on your toes.

  • Steel-toed shoes are important safety equipment to wear on certain loftier-risk jobs such equally structure.
  • Sentinel children's easily equally you lot open and close car doors.
  • Give your full attending to the task at hand. Finger injuries often happen when the person using the tool is distracted.
  • Don't elevator something you cannot handle alone. Find people to help you carry heavy objects to avoid dropping them on your toes.

What Is the Prognosis for a Subungual Hematoma?

  • After the subungual hematoma is drained, the pressure beneath the nail is relieved, and the pain decreases significantly.
  • The hole formed in the boom will remain and grow out at the rate that the nail unremarkably grows.
  • Ane possible risk and long-term complexity of a subungual hematoma is a nail bed laceration (cut).
    • If trauma is severe (for example, an subungual hematoma of the surrounding soft tissue including the boom bed, lunula, nail plate, or nail matrix), the nail bed laceration can be stitched closed after the blast is partially or completely removed.
    • If the peel below the nail is lacerated, similar to any other skin cutting, it may non heal properly without nail bed repair.
    • This complication tin can result in deformity of the new nail and the nail growth.
    • The deformity may be temporary and go away after the nail grows out, or it may be permanent, and y'all may take an apparently plain-featured nail forever.
    • If you do not seek medical attention at all for a subungual hematoma (not recommended), and sometimes fifty-fifty if yous do, and a pregnant injury occurs under the smash, the boom may completely fall off as it grows out equally office of the natural healing process.
    • Despite best efforts past doctors and yourself at home, nail deformity and permanent abnormalities can result from such injuries.

Subungual Hematoma Pictures

A thumb after it was hit with a large hammer. Notice that the dark discoloration beneath the nail takes up more than 75% of the area. This is blood. This hematoma required drainage to relieve the pressure.

A thumb after it was striking with a large hammer. Discover that the dark discoloration beneath the blast takes upwardly more 75% of the expanse. This is claret. This hematoma required drainage to relieve the pressure level.


The battery-operated cautery unit and its tip when it is activated. Notice the red hot area used to burn the hole in the nail.

The battery-operated cautery unit of measurement and its tip when it is activated. Notice the scarlet hot area used to burn the hole in the nail.


The process of burning a hole in the nail to relieve the hematoma. Notice the blood draining from the hole after the hole was formed with the cautery unit's hot tip. The finger has been numbed prior to this procedure.

The process of burning a pigsty in the nail to relieve the hematoma. Notice the blood draining from the hole after the hole was formed with the cautery unit'southward hot tip. The finger has been numbed prior to this procedure.


The same thumb after it has been drained. Notice the hole in the nail and the blood draining from the hole. The large dark area beneath the nail (the hematoma) is practically gone.

The same pollex after information technology has been tuckered. Find the pigsty in the boom and the blood draining from the pigsty. The large dark area beneath the nail (the hematoma) is practically gone.


An example of a nail with a subungual hematoma that occupies less than 25% of the nail area. This hematoma did not require drainage.

An example of a nail with a subungual hematoma that occupies less than 25% of the smash expanse. This hematoma did not require drainage.


A paperclip opened for use in draining a subungual hematoma. The open end would be heated to allow it to make a hole in the nail.

A paperclip opened for utilize in draining a subungual hematoma. The open end would be heated to allow information technology to make a pigsty in the nail.


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Cause of a Subungual Hematoma

Finger injuries are mutual and range from pocket-sized cuts and scrapes to wounds with major damage to os, tendons, and ligaments. If not treated properly, serious finger injuries tin lead to permanent deformity and loss of part. Conscientious treatment allows for a faster and more consummate recovery. Many different types of finger injuries are common:

Fingernail injuries

  • The fingernail and the underlying nail bed are the most normally injured function of the hand.
  • If a fingernail is injured by a direct blow, the underlying bone may as well exist broken.

References

Bope, Edward T., and Rick D. Kellerman. Conn's Current Therapy 2012, 1st Ed. Philadelphia: Elsevier, 2012.

Fastle, Rebecca K., and Joan Bothner. "Subungual hematoma." July 5, 2018. <https://world wide web.uptodate.com/contents/subungual-hematoma?search=Subungual%20Hematoma&source=search_result&selectedTitle=1~12&usage_type=default&display_rank=1>.

Roberts, James R., and Jerris R. Hedges. Clinical Procedures in Emergency Medicine, 5th Ed. Philadelphia: Saunders, 2009.

Patient Comments & Reviews

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