A plantar wart, also known as a verruca, is a small, non-cancerous growth that appears on the sole of the foot. These warts are caused by a viral infection, specifically the human papillomavirus (HPV). They can be unsightly and uncomfortable, but they are usually not a serious health concern. Plantar warts are characterized by their rough, raised surface and distinct black dots, which are actually small, clotted blood vessels. They may be located anywhere on the sole of the foot, but they are most common on weight-bearing areas such as the heel and ball of the foot. They can vary in size and shape, but they are typically less than half an inch in diameter. Understanding Plantar Warts: Causes and Symptoms Plantar warts are caused by HPV, a highly contagious virus that can be spread through contact with contaminated surfaces such as shower floors or locker room floors, or through direct contact with an infected person. The virus enters the body through small cuts or breaks in the ...