HPV is a class of DNA viruses that are widely found in nature. HPV infection in humans is very common and the infection rate is high. More than 20% to 80% of the sexually active population has a history of HPV infection. the association between HPV infection and cervical cancer was first proposed in the 1970s, and since then many epidemiological and molecular studies have unquestionably confirmed the etiological link between HPV and cervical cancer. in 1995 WHO has identified HPV as the cause of cervical cancer. Pang Jianping, Department of Male Medicine, Erdos Central Hospital Some prospective studies have shown that 15%-28% of women with positive HPV infection progress to cervical squamous intraepithelial lesions within 2 years, especially the risk of HPV type 16 and 18 infection is higher. The occurrence and development of cervical cancer is a process from quantitative to qualitative and from gradual to mutation. It was previously thought that it took 10-20 years for cervical squamous intraepithelial lesions to develop into invasive cancer, but now this process has been gradually shortened.