High-grade intraepithelial neoplasia belongs to a kind of precancerous lesion, which indicates that the local tissues may develop into malignant tumors if not intervened, and needs active treatment. High-grade intraepithelial neoplasia is commonly seen in the examination of mucosal tissues, commonly found in the cervix, vagina, digestive tract and other parts of the body, belonging to a kind of pathological changes, usually more serious than the condition of low-grade intraepithelial neoplasia, and needing active intervention, surgical treatment, removal of diseased tissues can play a curative effect on the condition, thus avoiding the disease from developing into a malignant tumor. If you find high-grade intraepithelial neoplasia, it is recommended that you go to the hospital in time and take reasonable methods of treatment under the guidance of the doctor to prevent the development of the disease and promote health.