Warts
What are Warts?
Plantar warts are noncancerous skin growths on the soles of the feet, caused by the human papillomavirus (HPV). They develop when the virus enters the body through tiny cuts or breaks in the skin on the bottom of the feet. Plantar warts are characterized by their location on the foot, and unlike other warts, they grow into the skin rather than out of it. This inward growth can create a callus-like appearance and can be painful, especially when walking or standing. Plantar warts are contagious and can be spread in communal areas where people walk barefoot, such as showers or swimming pools.
Signs & Symptoms
- A small, grainy growth on the bottom of the foot, often in high-pressure areas like the heel or ball.
- Hard, thickened skin (callus) over a well-defined “spot” on the skin, where a wart has grown inward.
- Pain or tenderness when walking or standing, which may feel like a lump or stone under the foot.
- Black pinpoints, commonly called wart seeds, which are small, clotted blood vessels.
- A lesion on the sole of the foot that interrupts the natural lines and ridges of the skin.
- Multiple warts clustered together, known as mosaic warts.