A split cervix can be caused by injury during labor, operation of the uterine cavity, coitus, and so on. 1. Injury during labor: If the fetus is forced to pass through the cervix without sufficient dilatation during labor, it can lead to cracks in the cervix. 2. Uterine operation: such as abortion or endometrial scraping and other uterine operations, the trauma of the operation will cause the cervix to have cracks. 3. Intercourse: If intercourse is too hard, it may cause rupture of the fornix at the back wall of the vagina, which may involve the cervix to produce cracks. It is recommended that patients with cervical fissures go to the hospital in a timely manner to clarify the cause, and if treatment is needed, standardized treatment should be carried out under the guidance of the doctor to avoid delaying the condition.