Cervical cancer is a malignant tumor occurring in the cervical area. Cancer is malignant and there is no benign one, so there is no difference between benign and malignant. Cervical tumors are divided into benign and malignant, but cervical cancer is differentiated into precancerous lesions, carcinoma in situ and invasive carcinoma. Depending on the severity of the lesion, it can be divided into mild intraepithelial neoplasia, moderate intraepithelial neoplasia and severe intraepithelial neoplasia. Most of the mild intraepithelial neoplasia can be reversed to become normal cervical tissue, while the severe intraepithelial neoplasia has a higher possibility of developing into cervical cancer. Before they develop into cervical cancer, these lesions are benign and pre-cancerous, but once they develop into cervical cancer, they are malignant lesions and there is no longer any distinction between benign and malignant.