“…Since most patients with testicular cancer are of a young age, the impact of therapy on sexual function and fertility has become increasingly important. Testicular cancer patients may have a reduced spermatogenesis ('hypospermia') at diagnosis (Hendry et al, 1983;Berthelsen and Skakkebaek, 1984;Cassileth and Steinfeld, 1987;Moynihan, 1987;Nijman et al, 1987;Fossa et al, 1988;Sleijfer et al, 1995) and after orchidectomy (Lampe et al, 1997), and only between 22 and 63% of patients fulfil the definition of normospermia at diagnosis (Hendry et al, 1983;Fossa et al, 1985;Nijman et al, 1987;Lampe et al, 1997). Three disease-associated conditions, local structural abnormalities detected by biopsy of the contralateral testis, the presence of sperm antibodies and endocrine factors, may be responsible (Berthelsen and Skakkebaek, 1984;Guazzieri et al, 1985).…”