Low sperm count means that the fluid semen you ejaculate during an orgasm contains fewer sperm than normal. A low sperm count is also called oligospermia ol-ih-go-SPUR-me-uh. A complete absence of sperm is called azoospermia. Your sperm count is considered lower than normal if you have fewer than 15 million sperm per milliliter of semen. Having a low sperm count decreases the odds that one of your sperm will fertilize your partner's egg, resulting in pregnancy. Nonetheless, many men who have a low sperm count are still able to father a child.
It is a common myth that female issues are usually that reason for pregnancy delay. Sometimes, sperm cells are malformed or die before they can reach the egg. In rare cases genetic diseases, for example cystic fibrosis or a chromosomal abnormality, can cause male infertility. This can impact the ability of the sperm to reach the egg and fertilise it.
Sperm motility is one of the factors measured in a semen analysis. It is an important factor in diagnosing fertility problems as the sperms have a lot of work to do swimming through the cervical canal, through the uterus and into the fallopian tubes to fertilise the waiting egg. The term motility actually refers to two things, firstly the number of sperm that are actively swimming total motility , expressed as a percentage of the whole; and secondly the percentage of sperm that are making forward progress, usually termed progressive motility. Some sperm will be swimming actively, but going in circles or spinning on their axis, which is not likely to get them to the egg. These sperm would be termed motile but non-progressive.
There is no scientific evidence that wearing tight clothes or bike shorts affects the quality of your sperm. Diet, vitamins and supplements actually have very little impact on your sperm count - but they do help you stay healthy. Sports injuries to the groin will only have an impact on sperm production in extremely severe cases. While the effect of age on a man's fertility is not as significant as it is with women, there is a decline in the quality of sperm after the age of