The author has investigated 88 nephrectomy cases for renal tuberculosis with were confirmed by pathologicalfindings and the study was made in relatively simple urography with oher clinical findings. The incidence ofnephrectomy due to renal tuberculosis among all of teh inpatients of urological department who recieved surgicaloperation, was 14% with sex ratio of male 1.6; female 1. Age distribution was highest among the patients in 3rd,4th and 5th decade, lowest below 1st and over 7th decades. Tubercle bacilli were found positive in 55.7% ofconcentrated urine. Proteinuria showed positive in 85%. In their past history, 47.7% in pulmonary tuberculosis,9.1% in calcium infiltration on abdominal lymphnodes and 2.3% in bone tuberculosis were noted. On plane abdomen12.5% in renal enlargements and 10.2% in renal calcifications were noted. After administration of contrast mediathrough antecubital vein for pyelography, 3.52% in nonfunctioning, 34.1% faint visualization and 30.7% goodvisualization were demonstrated. We have classfied them in to Group 1,2,3,4 and 4 by Lattimer's classification andthe results were as follow; 3.4% in Group 2, 38.6% in Grup 3 and 58% in Gruop 4. No one has ever recievednephrectomy among Group O and Group 1. We found that extreme importance to make early diagnosis by laboratoryfindings and urography in order to save the kidney from unnecessary surgical resection.