HPV infection is necessary for cervical cancer, no HPV, 100% no cervical cancer. There are mainly 15 HPV high-risk types such as 16183133355658, 2653663 possible high-risk types and 12 low-risk types. High-risk types are closely related to cervical cancer, while low-risk types are mainly found in benign diseases such as warts. More than 90% of women have been infected with HPV during their lifetime, but it usually resolves on its own within 8-10 months. HPVDNA-negative women do not need to be screened for 3 years, HPVDNA-negative cytology-positive women should be checked in the vaginal area, HPVDNA-positive ASCUS women should be checked in the vaginal area, HPVDNA-positive cytology-negative women should be rechecked in 6-12 months, ASCUS may be a reactive lesion or may be hiding CIN, so ASCUS should be rechecked in 4-6 months. -If the result is positive, the vaginal area should be examined immediately. Treatment of CIN1: Most of CIN1 can regress spontaneously without treatment. If the vaginal border result is satisfactory, follow-up is sufficient and cervical cytology should be repeated in 6-12 months. CIN2 and 3 can be treated with LEEP knife, cold knife conization, etc. In the case of nora1024, because the patient has a one year history of sexual bleeding, be vigilant, the key is whether the vaginal realm sampling is accurate? Agree to check HPV first, if positive perform post conization pathological examination, if negative can review cytology after 6 months.