我们自1986年1～9月对来我所进行人工授精的,外表正常、但多次射精标本均无精子的70名男性进行了染色体检查。以常规方法建立外周血淋巴细胞培养、染色体制片及GTG显带。每名患者至少镜下分析10个中期G带分裂相,若发现异常,则进一步计数和分析30个细胞。无论正常与否,每份 From January to September 1986, we conducted a chromosomal examination of 70 men who had an artificial insemination and had a normal appearance but no sperm on multiple ejaculation specimens. Peripheral blood lymphocyte culture, chromosome preparation and GTG banding were established by routine methods. At least 10 metaphase G-banding phases were analyzed microscopically in each patient. If abnormalities were found, 30 additional cells were counted and analyzed. Whether normal or not, each