男性不育较系统的细胞遗传学研究,国内尚未见报道。我们对70例无精症患者作了染色体G、C带分析。 对象和方法 70例无精症患者均经2次以上精液分析,确诊为原发男性不育、无精子,并排除生殖道梗塞。其中小睾丸(≤8~#——8.5cm~3,按睾丸体积测量模型标准)12例;较小睾丸(9～11~#——10～ Male sterility more systematic cytogenetic studies, has not been reported in China. We have 70 cases of azoospermia chromosome G, C-band analysis. Subjects and Methods 70 cases of patients with azoospermia were more than 2 times semen analysis, diagnosed as primary male infertility, no sperm, and exclude genital tract infarction. Among them, 12 cases of small testes (≤8 ~ # - 8.5cm ~ 3, according to testicular volume measurement model standard); smaller testes (9 ~ 11 ~ # - 10 ~