EN
Abstract The first changes in rat testicle haemomicrocircular channel links ultrastructural arrangement are noticed already in a 2-week run of streptozotocin-induced diabetes mellitus, and accumulate throughout next periods of the experiment. Angiopathy is a trigger mechanism for diabetic development of testicle structural changes. This finding is a basis for further morphologist and clinicist surveys for the purpose of new diabetic testicle pathology diagnostics, prevention, and elaboration of treatment techniques.