Normally, a woman’s cervix is a muscular canal that is about 3 cm in length. The patient’s cervical canal is relatively thin compared to the patient’s uterine cavity. Therefore, during a woman’s labor, if the labor is too fast or if the cervix is hypoplastic, or if there is a history of cervical surgery resulting in poor cervical elasticity, the cervical canal is prone to tearing during labor. In this case, the cervical canal will be shortened and the patient will experience vaginal bleeding. If the tear is large, there will be more bleeding and the bleeding will need to be stopped by suturing in time. If the patient is too rough during the procedure, such as hysteroscopy for cervical dilation, it may also cause a laceration of the cervix. In either case, a tear or laceration of the cervix will require timely suturing to stop the bleeding.