This paper addresses the question of how the urological disciplinary culture and urological knowledge were reformed during the early postwar period under conditions of the allied policy of denazification and demilitarization in East Germany. This article deals with the urological textbook as a central medium of disciplinary communication and explores how urological knowledge was processed in complex negotiation processes between authors, publishers and censorship authorities of the Soviet occupation zone. The focus is on mechanisms of medial control to which medical knowledge cycles have been subjected, and thus the archival holdings of censorship authorities that have not yet been evaluated. The evaluation results are presented here with a focus on urology and illustrated with selected case studies.