home / medterms medical dictionary a-z list / apls (antiphospholipid antibody syndrome) definition Medical Definition of APLS (antiphospholipid antibody syndrome) Our Antiphospholipid Syndrome Main Article provides a comprehensive look at the who, what, when and how of Antiphospholipid Syndrome
Sperm motility describes the ability of sperm to move properly through the female reproductive tract (internal fertilization) or through water (external fertilization) to reach the egg.
A man releases millions of sperm during sex, but just one can fertilise a woman's egg. Infertility is when a couple cannot conceive despite having regular unprotected sex. It can be caused by a range of disorders and lifestyle factors. However, fertility problems cannot be explained in around a third of cases.