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Many runners are familiar with the black toenail. The condition involves bruising Wholesale Wade Boggs Jersey , blistering or bleeding beneath the nail from repetitive trauma, either of the top of the shoe banging against the nail or the toe slamming into the end of the shoe. It鈥檚 most commonly experienced by marathoners and those training at especially high intensity. Some even see it as a badge of honor: the more black nails, the more badass.

But not all black toenails are from running. In certain cases, a dark nail tells a darker, more dangerous story. Here, two podiatrists explain the difference between the benign and malignant.


Repetitive Trauma
The most common culprit for black nails Cheap Denard Span Jersey , repetitive trauma can result from running, or from wearing any type of ill-fitting footwear. If a black nail crops up shortly after a workout or a day spent in too-tight or too-loose shoes, this is likely the cause.


Repetitive trauma ranges from mild (i.e. a small, painless, black-and-blue discoloration beneath the nail), to severe (i.e. large Cheap Sergio Romo Jersey , bloody blisters between your nail and nail plate), explains Dr. Jacqueline Sutera, D.P.M. and spokesperson for the American Podiatric Medical Association. In mild cases, no treatment is needed and the black nail will simply grow out.