Warts are small growths on the skin that are caused by the human papilloma virus (HPV). They generally appear as skin-colored bumps with a raised, rough surface. Although much of the time warts are harmless, and clear spontaneously within 1-2 years,[1] they may also require medical treatment depending on their location and symptoms.[2][3] Generally, warts are uncommon in infants, common in children, and decline in prevalence into adulthood.[4] It is important to note that warts are caused by the HPV virus, not to be confused with genital herpes (which is caused by the herpes simplex virus, HSV), or senile warts (seborrheic keratosis, a benign skin tumor of unknown etiology).