[Biopsy of the testis].

Biopsy of the testis has been considered for a long time and continues to be an acknowledged method of examination in the framework of investigation of male infertility. A classical indication for this is the repeated statement of azoospermia with normal size of the testes. On part of the spermogram, the indication for testicular biopsy is however not limited just to azoospermia. On the other hand, one can do without a biopsy when the size of the testes is less than 2.5 cm, as almost certainly a pronounced testicular atrophy which cannot be influenced will be present. Diagnosis of testicular precancerous conditions represents a more recent indication for biopsy of the testis which will probably gain more importance in the future. Anamnestic and clinical informations and above all the correct fixation and treatment of the specimen are an absolute prerequisite for the perfect interpretation of the bioptic picture.