[Ultramorphological changes in sperm cells of infertile men with testicular varicocele].

The ultramorphological characteristics of sperm cells of infertile men with testicular varicocele were evaluated. There was an increased frequency of abnormal changes within their spermatozoa as compared to fertile men. The abnormalities included agenesis, partial agenesis, malformation and degradation of the subcellular organelles of the heads and tails of the sperm cells. These findings suggest the use of these characteristics as a part of a "varicocele score" to determine those who would benefit from varicocelectomy in the treatment of their infertility.