There is a process of cervical cancer formation, and the whole process may take 5-10 years, 10-15 years, or it may take longer, for example, 20 years. And the time required for the process of cancer formation varies from individual to individual, with an overall average of 10-15 years. Cervical cancer is mainly caused by infection with high-risk HPV virus, which initially develops from cervicitis to cervical intraepithelial neoplasia, and as the disease continues to develop, the disease will gradually become carcinoma in situ, and the next step is cervical cancer. It takes about 5 years. The whole formation time of cervical cancer is relatively long, so timely gynecological examination in hospital and early treatment once the disease is detected will lead to a better prognosis.