HPV is a DNA virus that can be transmitted to humans through sexual transmission and mother-to-child transmission. It can be transmitted through sexual intercourse or through close contact with a person who has HPV. The infection directly affects the skin and mucous membranes of the body, causing squamous epithelial proliferation of the skin and mucous membranes. In milder cases, common warts, flat warts and filiform warts are formed on the surface of the body and can be observed as rice-sized papules, varying in size. The more severe cases can cause warts and even cervical, oral and nasopharyngeal cancers. The most typical manifestation is the appearance of cauliflower-shaped or corkscrew-shaped growths in the anus, groin, glans, and the labia majora and minora of women. If you are infected with HPV, you should pay close attention to it.