[Mycoplasma hominis and Ureaplasma urealyticum in pregnant and infertile women. Differences in tubal pathology].

We studied the frequency of cervicovaginal bacteria in 47 pregnant women (16-41 weeks of gestational age), in 47 infertile patients and in 4 with gynecological diseases (not infections). When we compared the frequency of bacteria between pregnant and infertile women, we found that the biggest difference was with U. urealyticum. In fact the frequency of this germ was 61% in the total population studied, in pregnant women was of 72% which is statistically higher than the frequency in infertile women which was of 47% (p < 0.025). We think that the reason for the higher frequency of this germ is a consequence of the effect of estrogens that favors the proliferation of this of germ. In the case of M. hominis the frequency in pregnant women was of 13% and in infertile women was of 21% which was not statistically different. Within the group of infertile patients, those that had tubal damage had a higher frequency of germs that the patients that did not have damage, moreover M. Hominis was not detected in the infertile patients without tubal damage and in patients with tubal damage its frequency was of 25%.