Medically reviewed by Katlein Franca, MD Key Takeaways A wart is a hard bump caused by a virus and can be removed with over-the-counter products.  A skin tag is a soft flap of skin usually found in ...

Foot warts can be common warts, plantar warts, or periungal warts. They develop when a certain strand of HPV infects a cut or open wound. You can get rid of them with salicylic acid products or by ...