[Testicular biopsy for diagnosis of fertility disorders (author's transl)].

The wide range of clinical possibilities of diagnosis of male fertility disorders (spermiogram, hormone determination, etc) raises the question whether there is any indication at all for testicular biopsy. For this reason, in the present survey, after presentation of the technical requirements and histological criteria of assessment, the most important pathomorphologically definable findings are described. By comparison of the results of studies of testicular biopsy and spermiogram the additional information obtained histologically is pointed out. it comprises diagnostic statements not only, but also suggestions on prognosis and therapy.