Controversy reigns over the role of Ureaplasma urealyticum in determin
ing pregnancy outcome. U. urealyticum infection of the chorioamnion is
strongly associated with chorioamnionitis (1-3), premature birth (2-4
), and perinatal morbidity (4-6). We present 4 cases of U. urealyticum
chorioamnionitis and associated morbidity and mortality.