The technical name for the runner's black toenail, subungal hematoma, describes simply a blood-filled swelling under the nail. This common occurrence is caused by the trauma of the toe or toes repetitively bumping against the front of the shoe. Blood pools in the space between the nail plate and nail bed as they separate or compress from repeated trauma. Individuals with Morton's toe are most susceptible to experiencing black toenails. The nail becomes discolored and usually has associated pain. …
· by John · In: blister care, Foot Care Tagged: black toenail, subungal hematoma, toenail blisters
