High-risk HPV infection will cause precancerous lesions if the infection lasts for about 2 years, starting from low-grade precancerous lesions, which will develop into high-grade precancerous lesions after 2-3 years if there is no clinical intervention, and then cervical cancer after another 2 years or so. Therefore, it takes about 9-10 years from HPV infection to the development of cervical cancer. For this situation, cervical cancer screening is particularly important, so it is recommended that women, whether or not they are not feeling well, should do cervical cancer screening once a year, and if problems are found, clinical treatment will be given in a timely manner, so as to eliminate the occurrence of cervical cancer. In addition, it is recommended that if a high-risk HPV infection is found, timely colposcopy should be done to find out whether there is any lesion on the cervical epithelium.