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电镜观察37例无精子症睾丸组织，就超微结构特点，按曲细精管有无精子形成，精子数量多少以及生精细胞形态特征分为三类：①睾丸曲细精管有精子形成，且数量不少，生精细胞的数量、排列及形态结构也基本正常。②曲细精管也有精子形成，但数量明显减少，生精细胞及其精子结构常常出现多种退行性变或畸形。③曲细精管未见精子生成。此类又可分为4亚类：a）生精上皮中有精原细胞和精母细胞，但无精细胞与精子；b）生精细胞未发育，生精上皮只有支持细胞；c）生精上皮的细胞溶解坏死；b）睾丸组织无曲细精管。最后，对三类无精子症作了临床分析．
Electron microscope observation of 37 cases of azoospermia testicular tissue, on the ultrastructure characteristics, according to seminiferous tubules with or without sperm formation, the number of sperm and morphological characteristics of spermatogenic cells are divided into three categories: ① testicular seminiferous tubules have spermatogenesis, And the number of many, the number of spermatogenic cells, arrangement and morphology are basically normal. ② seminiferous tubules also have sperm formation, but the number was significantly reduced, spermatogenic cells and their sperm structure often appear a variety of degenerative changes or deformities. ③ seminiferous tubules no sperm generated. This category can be divided into 4 sub-categories: a) spermatogenic epithelium with spermatogonia and spermatocytes, but no sperm cells and sperm; b) spermatogenic cells are not developed, the seminiferous epithelium only supporting cells; c) Fine epithelial cell lysis and necrosis; b) testicular tissue without seminiferous tubules. Finally, the clinical analysis of three types of azoospermia.