Following orchiectomy and retroperitoneal lymph node dissection (RND) 11 patients with non-seminomatous testicular cancer were treated alternately with combination chemotherapy consisting of vinblastine/bleomycin and adriamycin/cis-dichlorodiammineplatinum (II) (DDP). A total of 39 course of vinblastine/bleomycin and 36 course of adriamycin/DDP were administered. The two patients with disseminated testicular cancer came into complete and partial remission respectively. 1 patient with stage N3 and minor residual disease after RND, 7 patients with stages N1-2 and complete RND and 1 patient with stage N0, but chorio-carcinomatous portions in the testicular tumour show not sign of recidivation at present. The period of observation after orchiectomy ranges from 4 to 21 months, the median being 13 months. The side effects of chemotherapy are discussed in detail and both combinations are judged to be aggressive. The avoidance of DDP-nephrotoxicity by forced diuresis and the distinct and rapidly beginning intensification of the effect of phenprocoumon due to both regimens are stressed.