The direct cause of warts is human papillomavirus infection. There are several subtypes of human papillomavirus, including HPV-6, 11, 16 and 18, which are closely related to the development of warts. The main source of infection for condyloma acuminata is the patient with condyloma acuminata. The surface of the patient’s warts contains a large number of viral inclusions, which are most contagious. The actual fact is that the HPV virus is prone to attack the external genitalia of men and women and the wet areas of the skin and mucous membranes around the anus, so sexual contact is the main means of transmission of condyloma acuminata. The actual fact is that you can find a lot of people who have been in the business for a long time. In addition, pregnant women with condyloma acuminatum may have a newborn baby with HPV infection due to delivery in the birth canal.