Testis histopathological changes in fertility disorders.

Three hundred and twelve male patients undergoing testicular biopsy. Following biopsy the samples was sent to the Qaem pathology laboratory, then the samples was fixing in formalin and dehydrated by alcohol and clearing with xylol and paraffin blocks then prepared. After preparing the sections with microtome, samples were stained by hematoxylin and eosin (H&E) and studied by light microscopy. Histopathological results indicated that the most frequent histopathologic patterns of samples were Germ Cell Aplasia or Sertoli Cell Only Syndrome. Histopathological patterns of testicular biopsy are different from one part of the world to another, and related to many factors.