In 76 patients with genitourinary disorders an identification was carried out of atypical mycobacteria from the pathological material with subsequent categorization thereof into different groups according to Rennieun's classification. There have been established different numbers of recovering atypical mycobacteria, tuberculosis mycobacteria and their myxts in different urological and genital disorders, such as tuberculosis and cyst of the kidney, tuberculosis of appendages, chronic pyelonephritis, adenoma of the prostate. The conducted studies showed that the bulk of atypical mycobacteria identified in the above-named patients belonged in group II (scotochromogenes) and IV (fast-growing) as per Rennieun's classification.