Description
A bruise (hematoma) that develops under the fingernail after trauma to the finger. Bruises develop when small blood vessels under the nail tear or rupture. Blood leaks into tissues under the nail and causes the black-and-blue color. The blood becomes trapped under the nail and with time causes increasing pain and pressure.
Symptoms
Bluish-purple discoloration under the nail, pain that increases with passage of time, throbbing pain, finger swelling.
Tests
Common tests used for diagnosis and treatment
Workup:
A history and physical exam will be performed. An x-ray may be done to identify an associated fracture.
Tests:
X-ray
Specialists:
Internal Medicine, Orthopedic Surgery, Dermatology, Hand Surgery, Pediatrics, Family Practice, Podiatry, Foot and Ankle Surgery, Telemedicine Dermatology
Workup:
A history and physical exam will be performed. An x-ray may be done to identify an associated fracture.
Tests:
X-ray
Specialists:
Internal Medicine, Orthopedic Surgery, Dermatology, Hand Surgery, Pediatrics, Family Practice, Podiatry, Foot and Ankle Surgery, Telemedicine Dermatology
Treatment
Drainage of the hematoma by drilling or burning a hole in the nail is the standard treatment. Pain can be treated with acetaminophen (Tylenol) or nonsteroidal anti-inflammatory medications/NSAIDs (ibuprofen/Motrin or Advil, naproxen/Naprosyn or Aleve). A finger guard may be applied to prevent further injury during the healing process.