Cervical cryosurgery is the use of liquid nitrogen to treat cervical erosion and cervical polyps. By freezing the local tissue will necrotize and fall off, and by growing new squamous epithelium, the therapeutic effect can be achieved. If you have cervical disease, you need to go to the hospital for examination, and you need to do TCT to exclude cervical cancer. If there is no cancer, only then can you use cervical cryosurgery, and the best time to choose the operation is 3-7 days after menstruation to reduce bleeding and prevent gynecological infection. It is normal to have a small amount of bleeding when the scab is removed. It is important not to have intercourse within 30 days after surgery to avoid affecting the local recovery and causing gynecological infection, and to take metronidazole and other drugs reasonably after surgery.