Ureaplasmal Infections of the Male Urogenital Tract, in Particular Prostatitis, and Semen Quality

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Abstract
Ureaplasma urealyticum is considered an etiologic agent in urogenital tract infections, especially prostatitis. Using the ‘four-specimen technique’, diagnosis can be based upon significant numbers of these microorganisms. In ejaculate, the critical number seems to be 103 cfu/ml of semen to discriminate between real infection and contamination during urethral passage. In our study, 46 of 412 samples (11.2%) exceeded this critical number. Most but not all patients suffering from ureaplasma-associated prostatitis established by the ‘four-specimen technique’ revealed significantly high ejaculate numbers, whereas all samples from patients with prostatodynia and healthy controls had lower numbers. In these cases, numbers of round cells in semen, i.e. all leukocytes and spermatides, were significantly increased as compared to prostatodynia. A significantly negative correlation was detected between the numbers of ureaplasmas and zinc concentration in semen, and an almost identically negative correlation to the content of fructose, thus indicating secretory dysfunction of the accessory glands in ureaplasmal infections of the prostate.