Sperm DNA fragmentation is known to affect male fertility. Previous findings have suggested the implication of oxidative stress in the etiology of this pathological condition. The present study was designed to find out DNA fragmentation in ejaculated spermatozoa can be reduced by oral treatment with Ginger extract. 71 men with unexplained or Idiopathic infertility were randomized between a Ginger treatment (500 milligram daily for 3months) group and a placebo group.