Cervical cancer screening begins with testing for the human papillomavirus (HPV) and a cervical cytology smear test. If abnormalities are found in these tests, a colposcopy examination is needed. Under colposcopy, suspicious cancerous areas are selected for a cervical biopsy, and the cervical tissue is sent for pathological sections. Based on the results of the pathology sections, it is determined whether the condition is a precancerous lesion of the cervix or cervical cancer. If cervical cancer is present, a clinical doctor must perform a gynecological internal examination to determine the stage of the cervical cancer, and then choose a treatment plan.