Low-grade lesions on cervical biopsy, also known as precancerous lesions, may be caused by persistent high-risk HPV infection, and active treatment is recommended. If you do not have intercourse for 3-7 days after menstruation, and if the routine leucorrhea, blood test and clotting time are normal, you can have laser treatment, microwave treatment or cryotherapy, the main purpose of which is to make the lesion necrotic and fall off, and then grow new tissue to achieve the purpose of cure. Screening for cervical cancer must be done 3 months after treatment to find out whether there is persistent infection of high-risk HPV locally in the cervix and to find out whether there is still a possibility of epithelial lesions.