There were studied 68 cases of superficial (non-muscle invasive) bladder cancer for better understanding of etiology and pathology of this relatively frequent disease. Current cases of surgical treatment performed on base of oncourologic department, as well the archived cases on base of morfopathologic department, were classified according to the last classification recommended by WHO in 2004. It was found out that the papillary form of growing usually appears on fond of practically healthy urotelium. Than the infiltrative form of growing is most likely to appear on fond of such named precancerous pathologic processes and is characterized by worse recurrence and progression prognosis.