As you can see below there have been many small randomised controlled trials and pilot studies that have looked at the effect of acupuncture on sperm quality in men with low counts, poor motility and morpholgy or a varicocele, most with favourable results. Because these trials all had different methodology and measured different outcomes, it is difficult to pool results in a meta-analysis in order to make conclusions and therapeutic recommendations.  Therefore we await the outcomes of larger trials.