[Evaluation of the probability of the occurrence of pregnancy during oligo-astheno-teratospermia].

Analysis of several sperm counts makes possible the positive diagnosis of oligo-astheno-teratospermia. Attempts to determine their etiology and consequently their treatment, remain negative, in most cases. The physician involved must then try to answer the couple's concern about the prognosis. The prognosis depends on the alterations seen on the sperm count parameters; but there is no threshold figure under which no pregnancy is observed (except for zero), concerning the count, the gradual mobility or the morphology of the spermatozoids. Motility studies, survival tests in cervical secretions, in the female genital apparatus and in culture media or fertilization in vitro tests, improve the prognosis. However, an answer can only be provided if the fertility takes into account the age of the female partner and a study of her fertility as well as the duration of the infertility. Management will consist of a choice between discontinuation of the treatment, test of fertilization in vitro and temporizing, including trials of male treatment and treatment of possibly associated female factors.