Introduction
Cervical erosion is a commonest pathologic change in chronic cervicitis, which has often been neglected for the deficiency of knowledge. It can not only cause clinical symptoms, but also develop into cervical intraepithelial neoplasia ( CIN) even cervical invasive carcinoma. The incidence of cervical carcinoma in patients with cervical erosion is 10 times higher than that in patients without this disease. Cervical erosion include mild, moderate, severe degree, CIN, and ea...