Hard, grainy growths that appear on the heels or balls of the feet.
Plantar warts are hard, grainy growths that usually appear on the heels or balls of the feet. Plantar warts are caused by the human papillomavirus (HPV). The warts can be painful.
Many people first try wart-removing products sold without a prescription. Treatments healthcare professionals might offer are a stronger salicylic acid product, freezing medicine, lasers, and surgery.