Post-operative precautions after LEEP knife include proper rest, prevention of infection, paying attention to vaginal fluid, and reviewing on time. 1. Proper rest: LEEP refers to cervical loop electrodessication, which is a physical method to treat mucositis of the cervical canal or squamous epithelial lesion of the cervix, and it should be operated by a professional doctor. After the operation, you should pay attention to proper rest, avoid premature physical labor and strenuous exercise. 2. Prevent infection: follow the doctor’s instructions to give metronidazole and other antibiotics to prevent infection treatment. It is also forbidden to take basin bath and have sex for 8~12 weeks to avoid infection. 3. Pay attention to the vaginal fluid: after treatment, there will be an increase in vaginal secretion, and even a large amount of watery secretion, and there will be a small amount of vaginal bleeding when the wound is scabbed off in 1~2 weeks after the operation, so pay attention to observing the amount of vaginal fluid, keeping the vulva clean, and changing the underpants and sanitary products diligently. 4. Review on time: Since there are risks of cervical stenosis, infertility, infection, etc. after the operation, you should follow the doctor’s instructions and review on time after the operation to observe the healing of the wound and pay attention to whether there is cervical stenosis.