The occurrence of cervical erosion is closely related to the level of estrogen in the body. In women with high estrogen levels during their reproductive years, the columnar epithelium of the cervix migrates outward under the influence of high levels of estrogen and the surface of the cervix becomes erosion-like, which is called columnar epithelial ectopic. If the estrogen level in the body is low, such as postmenopausal women, the columnar epithelium moves inward to the cervical canal and the surface of the cervix changes smoothly, cervical erosion may disappear with the change of estrogen level in the body without medication or surgery. Cervical erosion is a normal physiological phenomenon that requires regular checkups for TCT and HPV, and no special treatment is needed if the two tests are not problematic.