Picture of Plantar Warts
Plantar warts are warts that appear on the soles of the feet. They are caused by specific types of human papillomavirus (HPV). Plantar warts develop when HPV enters small breaks on the bottom of the foot and causes abnormal cell growth. The wart may be tan, pink, flesh-colored, or white. Plantar warts are usually flat. Touching the wart and then touching another area of the body can cause plantar warts to spread.
Text References: "Warts." American Podiatric Medical Association. "Plantar Warts." The American College of Foot & Ankle Orthopedics & Medicine.