From 1967 to 1982, 696 previously untreated patients with stage I-III carcinoma of the uterine cervix were treated by radiotherapy alone with the conformation technique. This retrospective analysis was undertaken in an attempt to compare the therapeutic results between external irradiation alone (Group A) and external irradiation combined with intracavitary irradiation (Groups B and C). Local control rates of Groups B and C were 12% higher than that of Group A in stages I-II and 25% higher in stage III. Using the two-axial arc technique combined with the conformation technique, the severity and frequency of late rectal and urinary complications were significantly decreased. According to these findings, it was concluded that the conformation technique can be used for whole pelvis irradiation combined with intracavitary irradiation in routine work.