1. Assess the Situation:
* Pain Level: How much pain are you in? Is it throbbing or constant? Severe pain warrants immediate medical attention.
* Size of the Hematoma: How much of the nail bed is covered by the blood? A small hematoma might be manageable at home, while a larger one may need professional drainage.
* Nail Stability: Is the nail loose or unstable? If it is, you'll need to see a doctor.
* Mechanism of Injury: How did you get the injury? A crushing injury is more likely to have associated bone fractures and requires medical evaluation.
* Other Injuries: Are there any other injuries to the finger or toe? Deformity, inability to move the digit, or signs of infection all require immediate medical attention.
2. Initial First Aid (for Minor Hematomas):
* Clean the Area: Gently wash the affected finger or toe with soap and water.
* Apply Ice: Apply an ice pack wrapped in a cloth to the area for 15-20 minutes at a time, several times a day. This will help reduce swelling and pain.
* Elevate: Keep the injured hand or foot elevated to further reduce swelling.
* Pain Relief: Take over-the-counter pain relievers like ibuprofen (Advil, Motrin) or acetaminophen (Tylenol) as directed.
3. When to See a Doctor:
You should see a doctor promptly if any of the following are true:
* Severe Pain: If the pain is unbearable or throbbing.
* Large Hematoma: If the hematoma covers more than 25% of the nail bed. Larger hematomas are more likely to require drainage.
* Loose or Detached Nail: If the nail is loose, unstable, or coming away from the nail bed.
* Signs of Infection: Look for redness, swelling, pus, warmth, or throbbing pain.
* Crushing Injury: If the injury was caused by a crushing force (like a hammer). This could indicate a fracture.
* Underlying Medical Conditions: If you have diabetes, peripheral vascular disease, or any condition that impairs circulation or healing.
* Inability to Move the Digit: Difficulty bending or straightening the finger or toe.
* Deformity: Any visible deformity of the finger or toe.
* Uncertainty: If you're unsure about the severity of the injury, it's always best to err on the side of caution and seek medical advice.
4. Medical Treatment (if needed):
* Drainage (Trephination): A doctor can relieve the pressure and pain by drilling a small hole in the nail to drain the blood. This is usually a quick and painless procedure. It's most effective within the first 24-48 hours of the injury. Don't try to do this yourself! It requires sterile technique and proper tools.
* Nail Removal: In severe cases, especially if the nail is significantly damaged or unstable, the doctor may need to remove the entire nail. This allows for proper healing of the nail bed.
* Wound Care: The doctor will clean and dress the wound, and may prescribe antibiotics if there's a risk of infection.
* X-ray: If a fracture is suspected, the doctor will order an X-ray.
* Tetanus Booster: The doctor may administer a tetanus booster if you haven't had one in the past 10 years.
5. Aftercare:
* Keep the area clean and dry.
* Change the dressing regularly as instructed by your doctor.
* Avoid putting pressure on the injured finger or toe.
* Wear comfortable shoes if the injury is on a toe.
* Watch for signs of infection.
* Follow your doctor's instructions carefully.
Important Considerations:
* Don't try to drain the blood yourself. You risk introducing infection and causing further damage.
* Don't pick at or try to remove the nail. This can also lead to infection and delay healing.
* Be patient. Nail growth is slow. It can take several months for a new nail to grow completely.
By following these guidelines, you can properly care for a subungual hematoma and promote healing. Remember, if you have any concerns, it's always best to consult with a doctor.