The occurrence of papilloma may be related to viral infection, inflammatory stimulation, mechanical stimulation, metamorphosis and other factors, in which the papilloma due to human papillomavirus infection is infectious, as follows. Papilloma includes squamous cell papilloma, common warts, condyloma acuminatum and focal epithelial hyperplasia, all of which may be related to human papilloma virus infection, manifested as local epithelial ectodermal and polypoid hyperplasia, forming cauliflower-like or wart-like swellings. When the infected person has broken skin or mucous membrane and the systemic resistance is low, the virus can be transmitted through direct or indirect contact. If the above symptoms appear, it is recommended to go to the hospital in time for early professional treatment.