An estimated 10 percent of men are infertile, and the male partner is a factor in up to 50 percent of infertile couples, write the researchers. In many cases, the cause of male infertility is unknown.
Previous studies of acupuncture and male infertility have suggested that acupuncture can improve sperm production and motility (a measure of sperm movement).
In this study, researchers looked at the effects of acupuncture on the structural health of sperm in men with infertility of unknown cause.
Twenty-eight infertile men received acupuncture treatments twice a week for five weeks, and 12 received no treatment and served as a comparison group.
Researchers analyzed sperm samples at the beginning and end of the study and found significant improvements in sperm quality in the acupuncture group compared with the other group.
Acupuncture treatment was associated with fewer structural defects in the sperm and an increase in the number of normal sperm in ejaculate.
But other sperm abnormalities, such as immature sperm or sperm death, were unaffected by acupuncture.
The researchers write that acupuncture treatment is a simple, noninvasive method that can improve sperm quality.
