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.
Following a vasectomy, the goal is to have no sperm detected in the semen sample. Motility is the percentage of moving sperm in a sample and graded based on speed and direction travelled. At least 50% should be motile one hour after ejaculation, moving forward in a straight line with good speed.