The latest information shows that more than 140 types of human papillomavirus (HPV) have been identified. Depending on the site of infection, HPV is divided into two categories: pro-skin and pro-mucosal. The former mainly infects the skin, such as types 2 and 4, which cause common warts on the hands or body (commonly known as “wart”); types 3 and 10 cause flat warts on the face of adolescents; types 5 and 8 can cause a rare skin disease called “warty epidermal dysplasia. The types 5 and 8 can cause a rare skin disease called “verrucous epidermal dysplasia”. Mucosal HPV mainly invades the genital tract or respiratory tract mucosa, causing diseases such as condyloma acuminata and laryngeal papilloma. The common types of viruses that cause condyloma acuminata are type 6 and type 11. In addition, in terms of the relationship with the occurrence of cancer, HPV can be classified into low-risk and high-risk types. Low-risk types, such as types 6 and 11, have little relationship with the occurrence of cancer, while high-risk types, such as types 16 and 18, have a very close relationship with cancer, especially cervical cancer.