Cervical protrusion has the following clinical causes: 1, congenital developmental problems, some people will have cervical protrusion of the upper lip or lower lip protrusion, as long as there is no other abnormal organisms, you can give a regular review. 2, due to the localization of the cervix may grow leiomyosarcoma, manifesting local protrusion, you can ultrasound examination, to determine whether it is because of the leiomyosarcoma caused by the protruding cervix. 3, cervical localization of the cyst caused by the cervix, due to the cervical Localized chronic inflammation, resulting in glandular duct obstruction, so that the secretions in the gland can not be discharged and formed cysts. If the cyst is large, it will make the cervix protrude. Clinically, ultrasound can be used to find out whether there are localized cysts in the cervix.