Abstract
Using donor oocytes of proven fertility, the effect of sperm DNA fragmentation (SDF) and motility on reproductive success was examined in 70 couples undergoing ICSI. Both SDF and sperm motility were assessed at the time of sperm injection and using the same sperm sample that was processed for ICSI. While there was no difference in the fertilization rate, cleavage rate, embryo quality, or sperm motility between pregnant and nonpregnant couples, the SDF of nonpregnant couples (SDF = 23.9%) was higher than that of pregnant couples (SDF = 17.0%;
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