目的：初步探讨解脲脲原体（Ｕｕ）血清型与不育症的关系。方法：用代谢抑制试验（ＭＩＴ）法对１０９株由不育症妇女和１１７株由健康妇女分离到的Ｕｕ进行血清分型。结果：⑴３型和未定型Ｕｕ与不育症有关，而其余１３个血清型Ｕｕ未见与不育症有明显联系。⑵不育症妇女和健康妇女的Ｕｕ优势血清型分别为３型和４型。结论：３型和未定型Ｕｕ与不育症有关 Objective: To investigate the relationship between Ureaplasma urealyticum (Uu) serotypes and infertility. Methods: Metabolic inhibition test (MIT) was used to serotype 109 Uu isolated from infertile women and 117 healthy women. Results: (1) Type 3 and Uu were related to infertility, while the other 13 serotypes were not associated with infertility. ⑵ infertility women and healthy women Uu predominant serotypes were type 3 and 4. Conclusion: Type 3 and untuned Uu are associated with infertility