Sperm motility is a critical factor in male fertility. In order to reach the egg, sperm must be able to swim with a healthy forward motion. Decreased sperm motility (also referred to as asthenozoospermia) can be caused by a variety of factors, including abnormal spermatogenesis, sperm maturation issues, transport abnormalities, or a variocele (enlargement of the veins in the scrotum).
Acupuncture may help sperm motility by increasing the blood supply to the testes and also help to lower anxiety and stress.
There has been some debate over recent medical research into the usefulness of Pentoxifylline to improve semen quality.