Cervical screening is usually performed after a woman has been sexually active for 1 year and after menstruation. Cervical screening is performed mainly by obtaining cells at the cervix for cell testing and HPV virus analysis, including HPV virus testing and TCT liquid-based cytology testing. Cervical cell samples are susceptible to blood contamination that affects observation, so they need to be taken after menstruation, and there are no special requirements for other times. It is recommended that women who have been sexually active for more than 1 year should be screened regularly once a year. If there is HPV infection or abnormal TCT cells on cervical screening, further colposcopic cervical tissue biopsy or cervical loop electrosurgery or conical hysterectomy is required. Postoperative treatment with anti-HPV vaginal medication should be continued and cervical screening should be repeated 3 months after treatment. For women who are HPV negative or have not yet had sex, early HPV vaccination is generally recommended to reduce the risk of cervical cancer or precancerous cervical lesions.