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  • About Maze
    • Meet the Experts
    • Insurance Coverage
    • Our Published Studies
    • Additional Resources
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    • Join Our Team
  • TRT/Low T
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    • Delayed Ejaculation
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  • Reproductive Health
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    • Azoospermia Treatment
    • Semen Analysis
    • Extended Sperm Search & Microfreeze (ESSM)
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Advanced Male Infertility Testing

Back to Male Infertility
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At Maze Men’s Health, advanced treatment begins with a comprehensive semen analysis to identify the underlying causes of infertility and guide personalized care. Based on your results, we may recommend hormonal therapy, varicocele repair, or targeted lifestyle changes to improve sperm quality and reproductive health. For more complex cases, we offer microsurgical sperm retrieval, sperm banking, and coordination with IVF or ICSI specialists. Led by Michael A. Werner, MD, our team combines medical expertise with leading-edge technology to help men across Westchester, NYC, Connecticut, and New Jersey achieve their family-building goals.

Semen Analysis

Semen is the fluid that a man ejaculates. It is produced at several different sites in the body. The sperm within the semen are the cells that actually fertilize the egg. While it is most important to assess the sperm, they account for only 1% to 2% of the semen volume. Problems with the surrounding fluid may also interfere with the movement and function of the sperm. Therefore, both the sperm and the fluid must be tested.

There is no specific, magic number of sperm in the semen analysis of men whose partners will get pregnant. The partners of some men with a very poor semen analysis may conceive easily. The partners of some men with an excellent semen analysis may experience difficulty. However, men with good semen analysis results will, as a group, conceive at significantly higher rates than those with poor semen analysis results. The semen analysis will help determine whether there is a male factor involved in the couple’s sub-fertility. In those cases, we will recommend an evaluation. There are certain findings of the semen analysis which suggest specific potential problems. For example, an increased white blood cell count may indicate infection or inflammation. However, other abnormalities in many of the main parameters are non-specific. For example, there are a number of different causes for a decreased sperm count or diminished sperm movement. Some of these causes have other serious medical implications, others don’t. A thorough evaluation helps determine the cause of an abnormal semen analysis.

Comprehensive Semen Analysis (Sperm Count, Motility & Morphology Testing)

Almost all laboratories will conduct tests and report on the following information, using values established by the World Health Organization:

Concentration (Sometimes Referred to as the Count)

This is a measurement of how many million sperm there are in each milliliter of fluid. There are various techniques for obtaining this number. Some prove to be more accurate than others. Average sperm concentration is more than 60 million per milliliter (>60 million/cc). Counts of less than 20 million per milliliter (<20 million/cc) are considered sub-fertile.

Motility (Sometimes Referred to as Mobility)

This describes the percentage of sperm that are moving. Fifty percent or more of the sperm should be moving.

Morphology

This describes the shape of the sperm. The sperm are examined under a microscope and must meet specific sets of criteria for several sperm characteristics in order to be considered normal. Most commercial laboratories will report WHO morphology (use World Health Organization criterion). Thirty percent of the sperm should be normal by these criteria.

Volume

This is a measurement of the volume of the ejaculate. Normal is 2 milliliters (2 cc) or greater. The volume may be low if a man is anxious when producing a specimen, if the entire specimen is not caught in the collection container, or if there are hormonal abnormalities or ductal blockages.

Total Motile Count

This is the number of moving sperm in the entire ejaculate. It is calculated by multiplying the volume (cc) by the concentration (million sperm/cc) by the motility (percent moving). There should be more than 40 million motile sperm in the ejaculate.

Standard Semen Fluid Tests

Color, viscosity (how thick the semen is), and the time until the specimen liquefies should also be measured. Abnormalities in the seminal fluid may adversely affect the sperm. For example, if the semen is very thick, it may be difficult for the sperm to move through it and into the woman’s reproductive tract.

Additional Semen Analysis Tests

Forward Progression

This describes how well the sperm that are moving are making progress. Only when the motility (percent moving) is combined with the forward progression is an accurate picture of sperm movement obtained. Unfortunately, this is often not tested by commercial laboratories. A man’s motility may be normal and the fact that the sperm are moving sluggishly or almost not at all will be overlooked if the forward progression is not recorded separately.

Kruger Morphology

This is a more detailed evaluation of the morphology. Slides are specially stained and the sperm examined microscopically under high-power magnification. The sperm must meet a stringent set of criteria that evaluate the shape and size of the head, midpiece, and tail in order to be considered normal. A Kruger test helps determine which of the available advanced reproductive techniques may be most appropriate and successful.

Anti-Sperm Antibodies

Some men may produce antibodies to their own sperm. These antibodies may decrease fertility rates in a number of ways. They may impede the movement of sperm through a woman’s cervical mucous, inhibit the binding of a sperm to the egg, and/or inhibit its penetration into the egg. Men who are most at risk for developing antibodies are those with previous testicular and epididymal infection, trauma, surgery, or large varicoceles. The presence of these antibodies is often not predictable from other semen parameters or from the man’s history.

White Blood Cells

The semen may contain a high number of white blood cells, which may be an indication of either infection or inflammation. White blood cells are considered significant if more than 1 million are found in each milliliter of the ejaculate.

White blood cells cannot be differentiated from other round cells normally found in the semen (debris and immature sperm) without special staining. If more than one-million round cells are found in the ejaculate, a portion of the ejaculate should be specially stained to look for an increased number of white blood cells.

If the white blood cell count is elevated, semen cultures should be performed on a subsequent specimen. Unfortunately, the semen culture cannot be performed on the original specimen as it must be the first step performed on the specimen in order to keep it sterile.

Specialized Semen Tests for Deeper Insights

In certain situations, specialized tests are needed. These depend on the findings at the time of the analysis and can often be performed on that specimen.

Spun Specimen

Even if no sperm are seen on the test slide, the sperm count may still not be zero (there may be very low numbers of sperm in the ejaculate). This has very important implications as it may determine if the couple can conceive using advanced reproductive techniques. This must be assessed by spinning down the specimen so all of the sperm are concentrated in a pellet on the bottom of the tube and then examining the pellet beneath the microscope.

Viability

Sperm may be alive, but not moving. A specialized staining technique is used to determine what percentage of the sperm are alive and is indicated when the motility (percent moving) is less than 30%.

Fructose

In men with no sperm or very low numbers of sperm in the ejaculate, it is important to determine whether the sperm are not being produced at all, or whether they are being produced but are blocked from “getting into” the semen. A fructose test can help differentiate between these two problems.

Post-Ejaculatory Urinalysis (PEU)

Some men ejaculate all or part of the sperm backward into the bladder. This can be detected by having a man ejaculate and immediately afterward urinate into a separate cup. The post-ejaculatory urine is then centrifuged to see if any sperm are present.

ESSM (Extended Sperm Search & Microfreeze)

In 44% of cased where no sperm was found, this technique may be able to find even a single sperm through advanced processing techniques. These sperm may then be used in in vitro fertilization (IVF) with intracytoplasmic sperm insertion (ICSI). ESSM involves a specially trained andrologist processing the specimen, then dividing it into minute amounts. They then spends multiple hours looking through the entire semen specimen for any moving sperm. If sperm are found, they are placed on a specialized device, and frozen in a minuscule quantity of fluid so that they can be easily found when needed for insertion into an egg.

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Maze Men’s Sexual & Reproductive Health

Led by Michael A. Werner, MD, a board-certified urologist specializing in sexual and reproductive health, Maze has always focused on making a difference in people’s lives. This approach — one of compassion, medical sophistication and an openness to new techniques — extends to each individual area of our practice.

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