CT findings and comparison between clinical and CT staging were reviewed in 45 consecutive patients with biopsy proven carcinoma of the cervix. CT was done for staging of primary untreated cervical cancer in 36 patients and for diagnosis of recurrent cervical cancer of follow-up study 14 times in 9 patients. The results are as follows: 1. As comparing with clinical staging in 36 cases, CT agreed with clinical stage in 19 cases (52.8%), upstaged in 10 cases (27.8%) and down staged in 7 cases (19.4%). 2. The main upstaged CT findings are detection of unsuspected bladder or rectal invasion and paraaortic lymph node metastasis. Inadequate delineation of intravaginal tumor was the leading causes of understage of CT than clinical one. 3. CT detected all 10 cases of the hydronephrosis shown by IVP and detected unsuspected bladder invasion in 3 cases. 4. CT was valuable in the diagnolsis of recurrent tumor and follow-up study after treatment. 5. CT offers distinct advantages over clinical staging and can be integrated into the present FIGO classification of uterine cervix carcinoma. CT can served as an initial radiological staging work-up of primary of recurrent cervical carcinoma.