Sperm Motility Analysis (1-Hour Post-Ejaculation) via Computer-Assisted Sperm Analysis (CASA)

Why This Test Is Performed

A sperm motility test is typically ordered if you or your partner have trouble getting pregnant, unexplained infertility, recurrent miscarriages, or if you’ve experienced repeated failed fertility treatments. It may also be used to monitor sperm health after certain medical treatments or conditions. This specific test focuses on motility right after ejaculation, which can provide insights into how sperm respond to time and environmental factors.

What to Expect Before the Test

You’ll need to provide a fresh semen sample (ejaculate) collected in a sterile container. The sample is then analyzed using computer-assisted sperm analysis (CASA) to measure movement characteristics. Since this test is done 1 hour post-ejaculation, it’s important to follow any specific instructions your healthcare provider gives you, such as avoiding ejaculation for a set period before testing.

How the Test Works

After collecting your semen sample, it’s placed in a specialized device that tracks sperm movement. The device measures speed, direction, and overall motility, which are then recorded for analysis. This technology helps differentiate between healthy, motile sperm and those that may not be viable for fertilization.

What the Results Mean

Results typically report the percentage of sperm that are motile (moving) and the quality of their movement. While specific reference ranges can vary by lab, lower motility percentages or abnormal movement patterns may indicate underlying issues like poor sperm production, damage to sperm, or hormonal imbalances. Your healthcare provider will interpret these results in the context of your overall health and medical history.