This manual contains recommendations for early detection, diagnostic procedures, treatment modalities and follow-up in testicular cancer as a working formulation set up by the "Testicular cancer"-group of the Tumorcenter Munich. The different histological classifications and the tumor staging are described as well as treatment strategies dependent on tumor stage and histology. For nonseminomatous testicular cancer the surgical approach as primary or secondary intervention and the indication for adjuvant, curative or palliative chemotherapy are discussed, followed by details on regimens, application and side effects of chemotherapy. For seminomas particular recommendations on radiation therapy in non-bulky disease and on chemotherapy in bulky seminoma are given. For follow-up special follow-up-programs for periodical patient examination are presented.