Oligospermia associated with normal testicular function and epididymal lesions or malpositions

Epididymal disease is in our experience responsible for about 40 per cent of male infertility situations. The diagnosis of epididymal oligospermia can be suspected by the presence of firm normal volume testicles, by the absence of any elevation of FSH, and eventually, by a (slightly) hardened epididymis at palpation. The definite diagnosis however will only be established by quantitative reading of the testicular biopsy. Besides in oligospermic patients clinical information isolates an eventual new group where healthy epididymis could interfere with sperm quality by its malposition.