睾丸曲细精管的生殖上皮由生精细胞和支持细胞(sertoli细胞)组成。支持细胞构成血睾屏障,对生精细胞有支持和营养作用,并参与精子的形成和排放过程,因此支持细胞功能在一定程度上反映曲细精管的功能。过去,曲细精管的功能主要通过测定FSH水平或精液常规分析等指标进行评估。近年 The reproductive epithelium of the testicular seminiferous tubules consists of spermatogenic cells and supporting cells (sertoli cells). Supporting cells form the blood-testis barrier, which supports and nourishes spermatogenic cells and participates in the process of spermatogenesis. Therefore, supporting cell function reflects the function of seminiferous tubules to a certain extent. In the past, the function of seminiferous tubules was mainly evaluated by measuring the level of FSH or by routine analysis of semen. in recent years