Risk of malignant tumors among Chinese women increases from the age of 30. Premature sexual life is an important factor in the incidence of cervical cancer at a younger age.
HPV16 and HPV18 are the two high-risk types with higher carcinogenicity. It is most effective for women to get the HPV vaccine before they have sex for the first time. It takes at least 5 years for a patient to progress from viral infection to a highly pathological precancerous state and eventually cervical cancer.