萎缩睾丸，可见生殖细胞显著减少而剩下高柱状粉红色的支持细胞，管周及间质纤维化。如果病变广泛将导致不育。想得到孩子但不育的夫妻中约有一半是因为男性生殖系统存在问题。
Atrophic testis is demonstrated here. Note the marked loss of germ cells with remaining tall pink Sertoli cells, peritubular fibrosis, and interstitial fibrosis. If generalized, this is a cause for infertility. About half the time when infertility occurs in couples wanting children, the cause is a problem in the male genital system.
