Abstract
Two-hundred-and-thirty-three asymptomatic couples with a mean duration of infertility of 5 years were submitted to postcoital testing (PT) and to sperm penetration meter test (SPMT) and simultaneous microbial screening. Cervical swabs and semen specimens were collected for culture of Mycoplasma hominis, Ureaplasma urealyticum, Chlamydia trachomatis, Neisseria gonorrhoeae, other potentially pathogenic and commensal aerobic and anaerobic bacteria, herpes simplex virus, vaginal swabs for Trichomonas vaginalis and yeasts. Results of microbial screening were analysed with regard to sperm penetration ability into wives' cervical mucus in vivo and in vitro, but no marked influence was revealed for most microorganisms. Samples of only one of the 233 couples proved to be completely sterile. The findings suggest that in asymptomatic patients microbial colonization is of minor importance for sperm-mucus interaction.
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