Sperm motility and pregnancy
Male factor fertility issues include:. Low sperm count is responsible for most male factor reproductive issues, but sperm motility often also plays a role or is the lone factor in difficulties achieving pregnancy. Two general types of sperm motility have been defined:. In order to successfully fertilization, sperm must have progression motility which allows them to move at least 25 micrometers per second, through the cervical mucus to reach and fertilize an egg. Poor sperm motility, or asthenozoospermia, is diagnosed when fewer than 32 percent of a sperm sample display progressive motility.
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Sperm motility is the ability of sperm to move efficiently. Poor sperm motility can be a cause of male factor infertility. In this article, we look at the impact of sperm motility on fertility, as well as the causes of poor sperm motility, and what can be done to improve it.
Andersen, S. Ziebe, N. Petersen, N. Additionally, we investigated the relationship between semen quality and time to pregnancy TTP. No significant associations were found between TTP and sperm counts or sperm motility, either before or after sperm separation.