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Semen Analysis

A semen analysis evaluates certain characteristics of a male's semen and sperm. Depending on the measurement method, just a few characteristics may be evaluated (such as with a home kit) or many characteristics may be evaluated (generally by a diagnostic laboratory).

PubMed Health Glossary
(Source: Wikipedia)

About Semen Analysis

A man's semen can be tested to find out how viable the sperm cells are for fertilization. The results can provide information on the amount of semen, the sperm concentration, and the number of motile (able to move fast enough) and normally-shaped sperm cells. Because the results may fluctuate quite a bit, the test is often repeated a few weeks later. Institute for Quality and Efficiency in Heath Care

What works? Research summarized

Evidence reviews

Semen preparation techniques for intrauterine insemination

The effectiveness of specific semen preparation techniques for increasing pregnancy rates in subfertile couples undergoing intrauterine insemination (IUI) is unknown.

Techniques for surgical retrieval of sperm prior to intra‐cytoplasmic sperm injection (ICSI) because of absence of sperm in the semen (azoospermia).

It is not certain whether any particular surgical technique used to remove sperm for ICSI (sperm injection in vitro fertilisation or IVF) is better than another for the men involved or for leading to more pregnancies.

The effect of chronic bacterial prostatitis on semen quality in adult men: a meta-analysis of case-control studies

Chronic bacterial prostatitis (CBP) is caused by bacterial infection and maintains a condition of lower urinary tract infection. It may be a cause of male infertility. However, studies showed inconsistent results regarding the effect of CBP on several parameters of semen. Hence, we conducted a meta-analysis to examine the effect of CBP on basic semen parameters. A systematic review was conducted with Medline, PubMed, EMBASE, and two Chinese databases (CNKI and WANG FANG) to identify relevant studies that involved the effect of CBP on semen parameters up to July 2014. Both RevMan5.2 and STATA 12.0 software were used for the statistical analysis. Based on the inclusion and exclusion criteria, seven studies were included. The study illustrated that sperm vitality, sperm total motility, and the percentage of progressively motile sperm from CBP patients were significantly lower than controls (SMD(95%CI) -0.81[-1.14, -0.47], -1.00[-1.28, -0.73], -0.41 [-0.70, -0.12], P<0.05, respectively). However, CBP had no significant effect on semen volume, sperm concentration and the duration of semen liquefaction. In summary, our study revealed that there was a significant negative effect of CBP on sperm vitality, sperm total motility, and the percentage of progressively motile sperm. Additional, studies with larger number of subjects are needed.

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Summaries for consumers

Infertility: Poor sperm quality: Artificial fertilization using ICSI or IVF?

The quality of a man's sperm is measured by doing a test known as semen analysis. The results of this test are used to decide which type of artificial fertilization would be more suitable: IVF or ICSI. There are no studies on which semen analysis parameters can predict whether ICSI will be more successful than IVF.

Semen preparation techniques for intrauterine insemination

The effectiveness of specific semen preparation techniques for increasing pregnancy rates in subfertile couples undergoing intrauterine insemination (IUI) is unknown.

Techniques for surgical retrieval of sperm prior to intra‐cytoplasmic sperm injection (ICSI) because of absence of sperm in the semen (azoospermia).

It is not certain whether any particular surgical technique used to remove sperm for ICSI (sperm injection in vitro fertilisation or IVF) is better than another for the men involved or for leading to more pregnancies.

See all (15)

More about Semen Analysis

Photo of an adult man

See Also: Male Infertility, Vasectomy

Other terms to know:
Semen, Sperm Count, Sperm Motility

Related articles:
About Infertililty

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