Evaluation of Sperm Parameters of Infertile Men with Retrograde Ejaculation

Objective To investigate sperm parameters of infertile men with retrograde ejaculation.Methods Twelve infertile men with retrograde ejaculation (group A) were enrolled into this study. Sperm samples were obtained from the postejaculation urine. After sperm recovery and washing procedure, sperm parameters were assessed. Twelve semen samples from normospermic donors were used as the control (group B).Results In all retrograde cases, motile sperm with forward movement were observed in the medium. Motility of group A was significantly lower than that of group B (P＜0. 01).In group A, sperm motility ranged from 11% to 56%, sperm with intact both head and tail membranes was 42.2 ± 12.3%, sperm count ranged (13-85)×106/ml, and the sperm survival time was highly shortened. Sperm with normal morphology and intact acrosome were observed in retrograde specimens.Conclusion Sperm parameters recovered from retrograde specimens were highly variable between subjects. The toxicity of urine caused deleterious to sperm functions.Motile sperm could be collected by sperm recovery procedure. Sperm parameters could meet the requirement for the use of assisted reproductive techniques for treating infertile men with retrograde ejaculation.