Cervical epithelial low grade lesion, 1 checklist of cervical liquid based cytology, this situation requires cervical HPV examination, if there is high risk HPV infection, colposcopy is required as the next step, it is possible that the cervical precancerous lesion is due to viral infection, but this lesion is a low grade lesion. If there is no problem with colposcopy, it can also be observed, but biopsy must be taken for pathology under colposcopic observation, and the next step of treatment will be determined according to the pathology result. If the pathology result is still a low grade lesion of the cervix, it can be temporarily observed, and if there is a high degree of intraepithelial lesion, cervical conization is needed, and the next step of treatment will be determined according to the result of conization.