From 1980 to 1988 we analyzed clinical data of 83 patients (98 renal units) of renal tuherculosis. Actual number of patient per year did not decrease. Past histor- y or active lesion of pulmonary tuberculosis was noted in 15 cases. Vrine AFB positive rate was 58.6% and nonvisualization on initial excretory urography was noted in 33 renal units (33.7 %). Of 98 renal units, 42 units(42.9%) were managed with only medical treatment and 56 units (57.1 % ) with endouroloigc and surgical treatment plus antituber- culous medication. The incidence of development of ureteral stricture in 22 units without initial stricture evidence was 36.4%. The rate of nephrectomy in 43 units with initial stricture evidence was 37.9%. With only medical treatment and 14.3% with initial endourologic management. Our results suggest that ureteral stricure is one of the major causes of renal loss in renal tuberculosis. Thus early detection and appropriate, intensive urologic management as well as sufficient anti-tuberculous medication are necessary in the management of renal tuberculosis.