Cervical cryosurgery can only be performed after a biopsy has been taken with normal HPV and TCT and normal blood tests, mainly to prevent a missed diagnosis and the extent of cervical lesions. Cervical cryosurgery is mainly used to treat cervicitis, cervical columnar epithelial ectasia, cervical polyps and cervical intraepithelial neoplasia. A biopsy is required when the patient has normal HPV, TCT, and leukorrhea and blood tests, primarily to avoid missed diagnoses and to better identify localized conditions. It is recommended that women undergoing cervical cryosurgery must go to a regular hospital and do a good job of preoperative examination and postoperative care under the guidance of the doctor, and avoid having sex too early. When women experience heavy vaginal bleeding or other uncomfortable symptoms after cervical cryosurgery, it is recommended that they go to the hospital in time for examination, and follow the doctor’s instructions to deal with the cause of the disease.