What Causes a Black Toenail? Symptoms, Treatment & Prevention #3411350 (License: Personal Use)

The image shows a human foot with a prominent subungual hematoma on the big toe, characterized by dark purple-to-black discoloration under the nail plate, with surrounding erythema and mild swelling. The adjacent toes appear normal, and fine hair is visible on the dorsal foot, suggesting an adult male. The background is a neutral gray textured surface, likely a medical exam table or towel.

This image is typically used in podiatry, dermatology, or sports medicine articles discussing traumatic nail injuries, running-related ailments, or differential diagnosis of nail discoloration. It serves users searching for visual confirmation of conditions like “black toenail,” “bruised toenail,” or “subungual hematoma.”