During cervical cancer biopsy doctors can initially determine the condition of the cervix and whether there is cervical cancer based on their own experience or colposcopic examination or microscopic lesions. In addition, the histopathological examination after biopsy is very accurate if it is cancer, i.e. cervical cancer. In general, if there is contact bleeding or odor in the vaginal fluid of the cervix, it is necessary to go to the hospital for screening of cervical precancerous lesions. If TCT or HPV is positive, HPV 16 or 18 is positive, cervical biopsy is also recommended to understand the condition of the cervix in time to rule out precancerous lesions or cervical cancer.