The HPV is a sexually transmitted disease caused by human papilloma virus infection, HPV in the human body warm and moist conditions are particularly easy to survive and reproduce, so as to cause the human body infection, the human body infected with the HPV virus reasons mainly include the following aspects: 1, sexual contact infection: especially unclean sex is the main factor causing the acromegalic warts. When you have sex with a patient with condyloma acuminatum, the warts growing in the genital area are exophytic and brittle, so the surface is easy to break, and the warts and the virus in the epidermal tissue are then shed and inoculated to the genitals of the partner in sexual intercourse, leading to HPV infection and the onset of disease; 2, mother-to-child transmission: Pregnant women with condyloma acuminatum, especially those who do not have obvious clinical symptoms and the cervix, have the virus. The virus will be present in the genital tract, and during delivery, the fetus will pass through the birth canal, leading to neonatal viral infection and causing newborns to develop warts; 3. Indirect transmission: some patients are infected with the human papilloma virus through indirect routes, such as underpants, bath towels, and tubs, etc.; 4. Smoke transmission of warts: studies have found that the smoke produced by the laser treatment of warts contains the HPV virus, which suggests that HPV-containing viruses are present. The existence of HPV, which suggests that HPV-containing viruses may become one of the infectious causes of condyloma acuminatum; 5, self-inoculation infections: in the clinic found that patients suffering from genital or anal condyloma acuminatum, if the hand is often contact with the condyloma acuminatum, it can be transmitted through the hands of the other parts of the body of the skin and mucous membranes, and cause other parts of the condyloma acuminatum.