Black Toenails
What Causes Black Toenails?
Black or darkened toenails are essentially bruised nails and can result from a variety of injuries or problems. The most common cause is the toe repeatedly hitting the end or top of the shoe's toe area — which is why runners and athletes are frequently affected.
The discoloration is caused by blood pooling under the nail (subungual hematoma). Sometimes, the bruise can also lead to a secondary fungal nail infection. Diabetic patients should contact our office for evaluation if they experience any change in the color of toenails, as the pressure causing the bruise may lead to a small sore that can become infected.
Care & Treatment Options
Trimming the nail back to relieve pressure and prevent further trauma.
Applying a topical antifungal medication to prevent or treat secondary infection.
Applying topical antibiotic ointment if the skin under the nail is ulcerated.
Draining the hematoma (blood blister) for large, painful pooling under the nail.
Properly fitted footwear to prevent toes from hitting the front of the shoe.
Nail reconstruction with Keryflex for cosmetic restoration after healing.