From trauma to a toenail fungus, there are many reasons why you may have a black toenail. Here's what it means, how to treat ...

Are you a runner plagued by those pesky black toenails? Worry no more! We're here to share the key tips and essential ...

It can appear anywhere on the foot, including on the sole or under a nail ... It can also occur in the nail and appear as a wide, dark streak on the nail. It is important to note, however ...