Human papillomaviruses spreads benignly (warts) and malignantly (epidermoid carcinomas). It is a very common infection, and there are risk factors such as immunosuppression. It can infect the skin and mucous membranes (soles of the feet, hands, torso, limbs, mouth genitals, etc.) Diagnosis is clinical and treatment is varied, depending upon the extent and location of the warts. There are atopical treatments, in creams and solutions, physical treatments such as cryotherapy (freezing the lesion) oral treatments (vitamin complexes to help stimulate the patient's "defense" mechanisms).