Benign, keratotic (rough-surfaced), mucocutaneous proliferations due to human papilloma viruses (HPV).
There are more than 150 known types of HPV, whose manifestations include common warts, genital warts,
deep palmoplantar warts, and flat warts. Ubiquitous, they affect 7–12% of the general population, 10–20%
of school-aged children, and an even greater percentage of immunosuppressed patients and meat handlers
(“butcher warts”). They are difficult to treat and may resolve spontaneously.
There are more than 150 known types of HPV, whose manifestations include common warts, genital warts,
deep palmoplantar warts, and flat warts. Ubiquitous, they affect 7–12% of the general population, 10–20%
of school-aged children, and an even greater percentage of immunosuppressed patients and meat handlers
(“butcher warts”). They are difficult to treat and may resolve spontaneously.