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目的：探讨用解脲支原体（ Ｕ Ｕ）人工感染精子后，精子的形态学改变。 方法：运用电镜和相差显微镜观察 Ｕ Ｕ 人工感染正常精子和未感染精子２４ ｈ 后的形态学改变。 结果： Ｕ Ｕ 感染２４ ｈ 后，部分精子头部有较多的 Ｕ Ｕ吸附，在 Ｕ Ｕ 吸附部位精子膜出现破损；同时，畸形精子明显增加，主要为头尾折角、卷尾及精子凝集。 结论： Ｕ Ｕ感染对精子形态学的影响是造成男性不育的重要因素之一。
Objective: To investigate the morphological changes of sperm after artificial infection of spermatozoa with Ureaplasma urealyticum (UU). Methods: The morphological changes of UU artificially infected sperm and uninfected sperm were observed by electron microscope and phase contrast microscope. Results: After U U infection for 24 h, some U U adsorbed on the head of spermatozoa and damaged the sperm membrane on the U U adsorption site. At the same time, the abnormal spermatozoa increased significantly, mainly tail-tails, tail and sperm agglutination. Conclusion: The influence of U U infection on sperm morphology is one of the important factors of male infertility.