[Current considerations on male secretory sterility].

The problems of male sterility are considered in the light of fundamentals underlying the embryology and histophysiology of spermatogenesis and its hormonal control. Some forms of infertility are now understood but no treatment for them has yet been found. The mechanisms of other forms still elude firm definition: this is the case of, among others, some oligoasthenospermias in which, according to our experience, excessive estrogen production appears to play a physiopathologic role. In the prevailing uncertainty about therapeutic methods, the best short-term solutions in this field are in-vitro enhancement of the sperm's fecundating power and the improvement of artificial insemination techniques.