Cervical dysplasia is the presence of precancerous changes in the cells of the lining of the cervix. Cervical dysplasia is classified by two terms, squamous intraepithelial lesion and cervical intraepithelial neoplasia. The cause of cervical dysplasia is infection with the HPV virus (human papilloma virus). An HPV infection that does not resolve on it's own can lead to genital warts, cervical dysplasia, and cervical cancer. The treatment of cervical dysplasia depends on the severity (mild, moderate, or severe).