Cervical erosion does not cause pain in the vulva.1. Because cervical erosion itself is a normal physiological phenomenon, in the reproductive age, the strong secretion of estrogen causes the cervical columnar epithelium to migrate outward, resulting in a localized phenomenon similar to erosion. 2. Because the cervix is innervated by vegetative nerves, even In case of lesions, no painful sensation will occur. Therefore, if the pain down there is not related to cervical erosion, it is recommended to do further examination, such as a routine white belt test, to find out if there is vaginal pain due to vaginal inflammation or pain due to other lesions in the vulva.