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 ...

Over 100 types of HPV can cause common, plantar, flat, filiform, and genital warts. Warts are contagious and spread through both direct and indirect contact. Some warts can be treated at home with ...