Treatment of cervical intraepithelial neoplasia with conization prevents development of cervical cancers. Radicality in terms of negative conization margins have been reported ranging from 58% to 95%. This article presents a comparison of radicality in the different methods of conization. Loop electrosurgical excision procedure is the recommended method. Neither anaesthetic technique nor intraoperative colposcopy influences the radicality of conization. Studies on surgeon's skills and radicality are needed.