Conical hysterectomy is an obstetrical and gynecological procedure to remove the cervix, that is, to cut off a part of the cervical tissue in a conical shape from outside to inside. On the one hand, it is performed for pathological examination to confirm the diagnosis of cervical lesions; on the other hand, it is also a treatment method to remove the lesions. This procedure is mostly performed in the following cases: 1, cervical scraping cytological examination repeatedly found to have malignant cells, colposcopy without abnormalities, cervical biopsy or segmental scraping of the cervical canal negative, should be cervical conization to further confirm the diagnosis. 2.Cervical biopsy pathology has confirmed the diagnosis of CINII, CINIII or carcinoma in situ. 3.When early infiltration is found under microscope but the extent of the infiltration has not been clarified, cervical conization can be performed first to determine the scope of surgery. 4.Suspected adenocarcinoma of the cervix. 5. Those who have chronic cervicitis with poor results after conservative treatment can be treated with cervical conization. The following matters should be noted before and after the surgery: 1. It is better to choose 3~7 days after menstruation to perform the surgery, which can reduce bleeding and the chance of infection. 2.Since the operation may have more bleeding, blood type, blood routine and clotting time should be tested before the operation, except for bleeding disorders. 3. Pre-operative examination should be performed except for vaginitis. Pay attention to the cleanliness of the vulva to avoid post-operative infection. 4.Avoid sexual intercourse for a month after surgery to avoid bleeding. 5.After the surgery, regular review should be performed as required by the doctor. If you still have questions about the above explanation, especially if you are a foreign patient, you can communicate with me by applying for telephone consultation service and I will try my best to give advice.