Some uncertainties which impact on the quality of exclusive radiation therapy of carcinoma of the cervix and the operational procedures followed to lower treatment inaccuracies, are analyzed. In particular the following phase of radiation therapy are considered: prescription: indication for the dose and volume to be treated with external beam radiotherapy (ERT) or intracavitary brachytherapy (BRT) according to the different forms; planning: definition of procedures for ERT and BRT optimization; implementation: analysis of systems for checking reproducibility and treatment tolerance; follow-up: planning of clinico-instrumental controls of disease evolution and late toxicity.