Low-grade squamous intraepithelial lesion LSIL is a precancerous lesion of the cervix, which is also known as CIN1, but it does not mean that cervical cancer and malignant disease will definitely appear. If there is no long-term HPV infection and no risk of early cancer after cervical biopsy, no special treatment is needed at this time. If malignant lesions are present, cervical conization or total hysterectomy should be actively performed to prevent further aggravation of the disease, which may lead to irreversible consequences.