[A new therapeutic approach to infertility in polycystic ovaries: pure FSH].

Current, improved understanding of the physiopathology of polycystic ovary syndrome offers the possibility of more suitable treatment. Formerly, objectives differed for a given patient: re-establish regular cycles using progestogens or estroprogestogens, reduce hirsutism with antiandrogens, trigger ovulation. Clomid is the inducer of choice, but setbacks occur. Injectable gonadotropins were, in principle, a contraindication due to the high incidence of excess stimulation and multiple pregnancy. The introduction of purified FSH offers another method of stimulation. Severe excess stimulation is eliminated with a suitable protocol involving administration of small doses. This offers hope, but as yet no large-scale trial has been published.