LEEP is a specialized technique developed in recent years for the minimally invasive diagnosis and treatment of cervical diseases. The indications for LEEP surgery are: chronic cervicitis, cervical erosion, cervical ectropion, cervical leukoplakia, cervical polyps (large polyps or multiple polyps in the cervical canal), cervical warts, cervical precancerous lesions, etc. The advantages of LEEP knife: 1, can achieve very fine surgical effect; 2, small damage to the surrounding tissue, good hemostasis; 3, mild pain, only with local anesthesia; 4, postoperative scar and infection and other complications; 5, simple and fast operation, safe and reliable, short operation time, no hospitalization; 6, both diagnostic and therapeutic role; 7, less cost, easy for patients to accept.