Cervical columnar epithelium ectopic replacement of the name of cervical erosion , cervix due to the degree of inflammation of the different levels,cervical mucosal epithelium growth slow, epithelial flat, smooth appearance, that is simple erosion; columnar epithelial growth fast, form glandular hyperplasia for adenoid erosion. If the gland expansion can be follicular erosion, accompanied by interstitial hyperplasia,form small protrusions, covered with columnar epithelial uneven, form papillary erosion. Cervical erosion is the most common gynecological disease.
