Cervical cancer screening is usually done 3 to 7 days after menstruation. Before the cervical cancer screening, it is important to ensure local hygiene, stop having sex and do not douche before the screening. Cervical cancer screening programs include cervical cytology and cervical HPV testing. Cervical cancer screening is to find out whether the patient has cervical cancer and its grade. The cervical cytology test is to detect pre-cancerous lesions and to prevent and stop the development of cancer. Cervical HPV test can find out whether there are high-risk types, such as HPV-16 and 18. High-risk types may cause cervical cancer and need colposcopy on top of it. Cervical cancer screening is important for early diagnosis of cancer, early detection and early treatment. Risk avoidance:Timely cervical cancer screening, timely detection of problems and treatment under the guidance of doctors.