The cost of liquid-based TCT is about 360 RMB, which varies from hospital to hospital and from region to region, and is generally based on the local fee schedule. The main purpose of the liquid-based cytology test is to screen for abnormal cells in the cervix and to detect precancerous lesions or cervical cancer, usually in combination with HPV, and if both TCT and HPV are negative, the test can be repeated every two years. In general, if the liquid-based TCT is negative and HPV high-risk 16 or 18 infection is present, a colposcopic cervical biopsy should be performed, and biopsies should be taken from points 3, 6 and 9 of the cervix or from areas with thick white acetate, and the tissue should be sent to pathology for clear diagnosis.