Both the cervical DNA test and the TCT test, which are done to screen for cervical cancer, are done by examining the cells shed from the cervix to determine whether there is a possibility of cervical cancer. In comparison, the cervical DNA test is slightly more accurate than the TCT test, but it cannot confirm the presence of cervical cancer. If abnormalities are found, colposcopy and then a small amount of cervical tissue for pathological examination are needed to confirm the diagnosis of cervical cancer or precancerous cervical lesions. Both of these examinations are initial screenings. If the examinations are normal, cervical cancer screening can be done once every three years. For women with sexual history, regular cervical cancer screening can greatly improve the survival quality and time of cervical cancer patients by early detection and treatment of cervical cancer.