It takes about 2 years from the time of high risk HPV infection in the cervix to the development of low grade cervical lesions, and 2 years from low grade lesions to high grade lesions, and about 2 years from high grade lesions to cervical cancer, so it takes about 6-8 years from the time of high risk HPV infection to the development of cervical cancer. Due to individual differences, it is possible that this time may be shorter or longer. Once a cervical epithelial lesion is detected, it should be treated promptly, and after treatment, it must be reviewed regularly at the hospital, mainly to find out whether there are still lesions or high-risk HPV infection.