对７７例住院初产妇羊水进行溶脲脲原体（ｕｕ）检查，结果１５例早产，５例ｕｕ阳性，阳性率３３３％；８例新生儿低体重，２例ｕｕ阳性，阳性率２５％；死胎２例，１例ｕｕ阳性。胎儿正常者５２例，２例ｕｕ阳性。结果显示溶脲脲原体感染可影响胎儿发育，应对孕妇及早检查与诊治 Prevalence of urogenital Ureaplasma urealyticum (Uu) in 77 cases of primipara of early hospitalized women showed that 15 cases were premature and 5 cases were positive for uu, the positive rate was 333%. Eight newborns with low body weight and 2 uu were positive with a positive rate of 25 %; Stillbirth in 2 cases, 1 case uu positive. Fetal normal in 52 cases, 2 cases uu positive. The results show that infection of Ureaplasma urealyticum can affect fetal development, early pregnancy should be checked and diagnosis and treatment