If you are trying to conceive and wondering whether sperm health could be affecting your chances, a semen analysis is one of the first male fertility tests your specialist may recommend. It checks sperm count, movement, shape, and other semen characteristics to help identify possible male-factor fertility concerns and guide the next steps. 

What Is a Semen Analysis and Why Is It Done?

A semen analysis test, sometimes called a sperm test or semen test, examines a semen sample in a laboratory. It provides information about the quantity and quality of sperm and can help a fertility specialist understand whether further investigation may be appropriate.

The Almond Blossoms describes semen analysis as an important laboratory examination when investigating male reproductive health and fertility potential. However, one semen analysis cannot by itself confirm whether a man is fertile or infertile. Fertility depends on multiple factors in both partners.

A specialist may recommend a sperm count test or full semen analysis when:

  • You and your partner have been trying to conceive without success.
  • There is a history of testicular injury, infection, or surgery.
  • There may be a hormonal or reproductive concern.
  • You are considering fertility treatment such as IUI or IVF.
  • You are planning sperm freezing or fertility preservation.
  • A previous semen analysis showed an abnormal result.
  • There is a history of treatment that may affect sperm production.
Is semen analysis the same as a sperm count test

Is semen analysis the same as a sperm count test?

Not exactly.

A sperm count test generally refers to measuring how many sperm are present, particularly the concentration of sperm in the sample. A semen analysis is more comprehensive. It can assess sperm concentration, total sperm count, sperm motility, morphology, vitality, and characteristics of the semen itself.

This broader assessment gives your fertility specialist more information than sperm count alone.

What Does a Semen Analysis Test Measure?

A semen analysis looks at several characteristics rather than just one number.

1. Sperm count

Sperm count refers to the number of sperm in the ejaculate. Your report may show:

  • Sperm concentration: number of sperm per millilitre of semen.
  • Total sperm count: total number of sperm in the entire sample.

The WHO 2021 reference values list a lower reference limit of approximately 16 million sperm per mL for concentration and 39 million sperm per ejaculate for total sperm number.

A result below a reference limit does not automatically mean that pregnancy is impossible. Your specialist considers the complete semen analysis together with your medical history and your partner’s fertility assessment.

2. Sperm motility

Sperm motility describes how well sperm move.

This matters because sperm generally need to move through the female reproductive tract to reach the egg.

Motility may be reported as:

  • Progressive motility: sperm moving forward.
  • Non-progressive motility: sperm moving but not moving forward effectively.
  • Immotile: sperm that are not moving.

3. Sperm morphology

Sperm morphology means the shape and structure of sperm.

The laboratory examines sperm under a microscope to assess characteristics such as the head, middle section, and tail.

This number can surprise people. It does not mean that 96% of sperm are necessarily incapable of fertilisation. Morphology is one parameter among several and needs to be interpreted in context.

4. Semen volume

This is the amount of semen produced in the sample.

5. Sperm vitality

Vitality measures the percentage of sperm that are alive.

The WHO 2021 lower reference value is approximately 54%. 

6. Other characteristics

Depending on the laboratory and clinical situation, your report may also include:

  • Semen pH
  • Liquefaction
  • Presence of round cells or white blood cells
  • Appearance and viscosity
  • Other laboratory observations

Additional testing may sometimes be considered when a standard semen analysis does not fully explain fertility concerns.

What Is the Normal Range for Semen Analysis?

One of the most common questions after receiving a report is: Are my semen analysis results normal?”

The answer depends on the individual parameters and the clinical context.

The following table summarizes commonly used WHO 2021 lower reference values:

Semen parameter WHO 2021 lower reference value
Semen volume 1.4 mL
Sperm concentration 16 million/mL
Total sperm count 39 million/ejaculate
Total sperm motility 42%
Progressive motility 30%
Normal morphology 4%
Vitality 54%

These are reference limits, not a simple pass/fail fertility test. For example, having a sperm concentration below the reference value does not mean that natural pregnancy cannot occur. Conversely, having numbers within reference ranges does not guarantee pregnancy.

This is why your semen analysis results should be interpreted by a fertility specialist rather than by looking at one number in isolation.

How Is a Semen Analysis Test Performed?

The procedure is usually straightforward, although it can feel uncomfortable or stressful because of its personal nature.

Step 1: Follow the recommended abstinence period

Many laboratories recommend avoiding ejaculation for approximately 2–7 days before the sample. Following the specific instructions provided by your fertility clinic or laboratory is important because the abstinence period can affect sperm concentration and motility. 

Step 2: Collect the sample

The sample is generally collected by masturbation directly into a sterile container supplied or approved by the laboratory.

Do not use ordinary condoms, lubricants, or other collection methods unless your laboratory specifically provides an approved alternative. Some products can affect sperm.

Step 3: Collect the complete sample

Try to collect the entire ejaculate.

If some of the sample is accidentally lost, tell the laboratory staff. The first portion of an ejaculate can contain a particularly high concentration of sperm, so an incomplete sample may affect interpretation.

Step 4: Laboratory examination

The sample is examined soon after collection because sperm movement can change with time.

The laboratory assesses the relevant semen and sperm parameters and provides a report for your fertility specialist to interpret.

What if I cannot produce a sample?

If collecting a sample is difficult because of anxiety, performance concerns, pain, or another issue, tell your healthcare team rather than feeling embarrassed.

There may be appropriate alternatives or additional support depending on your situation.

How Should You Prepare for a Semen Analysis?

Following collection instructions carefully can make the result easier to interpret.

Before your male fertility test, check the laboratory’s specific instructions. In general:

  1. Follow the recommended 2–7 day abstinence period.
  2. Use the container provided or approved by the laboratory.
  3. Avoid lubricants unless specifically approved.
  4. Collect the entire sample where possible.
  5. Record the collection time if requested.
  6. If collecting at home is permitted, follow the laboratory’s instructions for transport.
  7. Tell your specialist about relevant medications, supplements, previous illnesses or treatments.
  8. Do not stop prescribed medication without discussing it with your healthcare professional.

A semen analysis is sensitive to collection conditions, which is one reason an unusual result may sometimes need confirmation with another sample. 

What Do Abnormal Semen Analysis Results Mean?

Seeing a result outside the reference range can understandably cause anxiety. But one abnormal semen analysis does not automatically mean infertility.

Semen parameters can vary between samples, and the result needs to be considered alongside your medical history, examination, and your partner’s fertility assessment.

Depending on the findings, your specialist may recommend:

  • Repeating the semen analysis.
  • Reviewing medications and medical history.
  • Hormonal evaluation.
  • Examination for possible reproductive conditions.
  • Additional male fertility investigations.
  • Lifestyle or medical interventions where appropriate.
  • Fertility treatment such as IUI, IVF or ICSI when clinically indicated.

What if the sperm count is low?

A low sperm concentration or total sperm count may be described as oligozoospermia.

The appropriate next step depends on how low the count is and whether other parameters, such as motility and morphology, are also affected.

What if sperm motility is low?

Low motility is sometimes referred to as asthenozoospermia.

Your specialist may consider the overall sperm profile rather than treating motility as an isolated number.

What if sperm morphology is low?

A lower percentage of normally shaped sperm is sometimes described as abnormal morphology or teratozoospermia.

Importantly, morphology should not be interpreted alone. The relationship between count, motility, morphology, and the couple’s overall fertility picture is more useful.

Can IVF or ICSI help with abnormal semen results?

Depending on the cause and severity of male-factor fertility concerns, assisted reproductive techniques may be considered.

IVF (in vitro fertilisation) involves fertilising an egg with sperm in a laboratory before transferring an embryo to the uterus.

ICSI (intracytoplasmic sperm injection) is a form of IVF in which a single sperm is injected directly into an egg to assist fertilisation.

Whether IUI, IVF, ICSI, or another approach is appropriate depends on your individual assessment. A fertility specialist can explain the options after reviewing the semen analysis and other relevant tests.

Frequently Asked Questions (FAQs)

What is a semen analysis test?

What is a normal sperm count?

How many days should I abstain before a semen analysis?

Does one abnormal semen analysis mean infertility?

Can I have a normal semen analysis and still have fertility problems?

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