Since HPV is widely found in nature, the virus is found in the human skin, digestive tract, and respiratory tract. Therefore, any woman who is sexually active may bring HPV into her reproductive tract through sexual contact. The census found that HPV infection is not uncommon. 60% to 70% of women have been infected with HPV during their lifetime, but the infection is usually transient. Most women have an immune system that can eliminate HPV that enters their body. Only a few women with weakened immune systems are unable to eliminate HPV that enters their body, resulting in persistent HPV infection (about 8 to 12 years) before cervical cancer may develop. The clinical HPV-DNA testing method detects abnormalities and can buy patients enough time for prevention and treatment. The incubation period of genital HPV infection is extremely variable. Generally, genital warts become apparent after 3 to 6 months of HPV infection, however, some studies have shown that the latency period is several months or even decades The vast majority of HPV infections are transient, and self-healing occurs within 1 to 2 years for most new infections Only a few HPV infections remain latent and are reignited after several years or decades.