Warts are benign, infectious growth of skin caused by a group of virus called HPV (Human Papilloma Virus). There are many types of HPV that infect skin. Typically warts that occur on the face are flat warts. Flat warts are also commonly seen on scalp, neck and upper chest. Other types of warts occur on the other parts of the skin including hand, elbow, and feet. Flat warts, also known as verruca plana are skin-colored or brown color, slightly raised, flat-surfaced growth, typically 1 to 6mm in size, but multiple warts can join to form a larger wart. This is a very common condition, yet many patients simply do not know or mistakenly think that they have liver spots.