Cervical screening is a combined test to check the cervix for lesions and the cervix for HPV infection. Cervical screening refers to the combination of liquid-based cytology (TCT) and human papillomavirus (HPV) testing, which involves the collection of a sample of cells from the squamous-columnar junction of the cervix, which is analyzed cytologically to determine the presence or absence of cervical lesions. Since the main cause of cervical cancer is HPV infection, TCT can be performed in conjunction with HPV screening. TCT is to check whether the cervical cells have undergone abnormal changes under the action of HPV virus, which means that HPV is to check the cause and TCT is to look at the result. Therefore, only a combination of these two results will help your doctor make an accurate diagnosis. Cervical screening is especially important to help us detect and treat cervical lesions early and nip cervical cancer in the bud.