Conization usually refers to a conical excision of the cervix, which usually requires birth control because the cervical canal will be shorter after the operation, and the cervical incision will be scarred and less elastic, leading to a higher chance of miscarriage or preterm labor. Cervical conization is usually indicated for the diagnosis and treatment of high-grade cervical intraepithelial neoplasia and carcinoma in situ. After the operation, the cervical canal of the woman will become shorter, which may lead to cervical insufficiency. With the increase of pregnancy weeks, the fetus grows, and the pressure inside the uterine cavity increases, the chances of miscarriage or preterm pregnancy will be greatly increased, so pregnant women who become pregnant after cervical conization usually need to be kept on birth control treatment. Pregnant women are advised to take rest and have a balanced diet after the operation. If pregnant women experience symptoms such as abdominal pain and vaginal bleeding after the operation, it is recommended that they should seek medical attention in time, and under the guidance of the doctor, complete the relevant examinations to clarify the cause of the disease and deal with it in time.