Cervical screening mainly refers to cervical cancer screening, and cervical cancer screening programs include liquid-based cytology and human papillomavirus testing. 1. Liquid-based cytology is a sampling test, which generally uses a brush-like sampler to rotate the sample on the surface of the cervical canal, and then conducts pathologic examination on the collected sample, which can roughly determine whether or not there is degeneration of the surface cells of the cervix. 2. Human papillomavirus test mainly detects whether the cervical canal carries human papillomavirus, and a negative result after sampling is considered normal. If both tests are normal, it is recommended to have regular checkups. If the test results are abnormal, it is recommended to cooperate with the doctor for further examination to clarify the condition. Cervical screening is usually performed three to seven days after menstruation. Three days before the test, women should avoid vaginal medication or douching, and avoid sexual intercourse to ensure the accuracy of the test results. Women who are sexually active are advised to go to the gynecology department of the hospital regularly for cervical screening, so that early detection and early treatment can be avoided.