Two tests commonly used during fertility evaluation are a pelvic ultrasound and semen analysis. A pelvic ultrasound helps assess the female reproductive organs, particularly the uterus and ovaries, while a semen analysis evaluates important characteristics of semen and sperm, including sperm concentration, movement and shape.

Neither test, on its own, tells the entire fertility story. But together with your medical history and other investigations recommended by your fertility specialist, they can provide useful information about factors that may be affecting conception.

What Is a Pelvic Ultrasound?

A pelvic ultrasound is an imaging test that uses high-frequency sound waves to produce images of organs and structures within the pelvis. Unlike an X-ray, an ultrasound doesn’t use ionising radiation. During a fertility evaluation, it may be used to examine structures such as the:

• Uterus
• Uterine lining (endometrium)
• Ovaries
• Cervix
• Surrounding pelvic structures

Depending on the reason for the examination, a pelvic ultrasound may help identify conditions such as ovarian cysts or uterine fibroids and provide information about the ovaries and uterus.

It is also important to understand what a routine pelvic ultrasound cannot tell you. For example, a standard pelvic ultrasound isn’t, by itself, a complete test of whether the fallopian tubes are open. Specialised investigations may be required when tubal patency needs to be assessed.

What Happens During a Pelvic Ultrasound?

There are different ways a pelvic ultrasound can be performed. For fertility investigations, you may have a transabdominal ultrasound, transvaginal ultrasound or, in some cases, both.

1. Transabdominal Pelvic Ultrasound

For a transabdominal ultrasound, you’ll usually lie on an examination bed while a healthcare professional applies a clear, water-based gel to your lower abdomen.

A handheld device called a transducer is then moved gently over the skin. It sends and receives sound waves, which a computer converts into images of the pelvic organs.

You may be asked to arrive with a full bladder because this can improve the view of certain pelvic structures. Follow the specific instructions given by your fertility clinic.

The examination is generally quick and well tolerated.

2. Transvaginal Pelvic Ultrasound

A transvaginal ultrasound can provide more detailed images of the uterus, uterine lining and ovaries.

For this examination, you’ll usually empty your bladder first. A slim ultrasound probe is covered, lubricated and gently inserted into the vagina. The healthcare professional then adjusts the probe to obtain images from different angles.

You may feel pressure or temporary discomfort, but the examination generally shouldn’t be significantly painful. If you’re uncomfortable at any point, tell the healthcare professional performing the scan.

What Can a Pelvic Ultrasound Show During Fertility Testing?

A fertility specialist may use ultrasound findings to gather information about your reproductive health. Depending on when and why the scan is performed, it may help assess:

• The size, shape and position of the uterus
• The appearance and thickness of the uterine lining
• The ovaries
• Ovarian cysts
• Uterine fibroids
• Developing ovarian follicles when fertility treatment is being monitored
• Other structural abnormalities that may require further investigation

The findings need to be interpreted alongside your symptoms, menstrual and reproductive history, blood tests and any other fertility investigations your clinician recommends.

What Is a Semen Analysis?

A semen analysis is one of the standard tests used to evaluate male fertility.

The test examines a semen sample in a laboratory to assess several characteristics of the semen and sperm. Depending on the laboratory, these may include:

• Semen volume
• Sperm concentration
• Total sperm number
• Sperm motility, or how well sperm move
• Sperm morphology, or the size and shape of sperm
• Sperm vitality
• Other characteristics of the semen

These measurements help your fertility specialist understand whether sperm-related factors could be contributing to difficulty conceiving.

What Happens During a Semen Analysis?

The process is relatively straightforward, although it’s understandable if you feel awkward or nervous about it.

Step 1: Prepare for the Test

Your fertility clinic will give you specific preparation instructions.

The recommended period of abstinence can vary between laboratories, but commonly falls within approximately 2–7 days without ejaculation before sample collection. Following your clinic’s exact instructions matters because the period of abstinence can affect semen-analysis results.

Avoid assuming that a longer period of abstinence automatically produces a “better” result. It doesn’t necessarily work that way.

Step 2: Collect the Semen Sample

The sample is commonly produced through masturbation and collected directly into a sterile container supplied or approved by the clinic or laboratory. It’s important to collect the complete ejaculate where possible because losing part of the sample—particularly the first portion—can affect the results. Unless specifically approved by your clinic, don’t use ordinary lubricants or a regular condom to collect the sample, as some products can interfere with sperm.

If some of the sample is accidentally lost, tell the laboratory rather than hiding it. That information helps the team interpret the result appropriately.

Step 3: The Sample Is Analysed

Once collected, the semen is examined in the laboratory.

The laboratory may assess the quantity and characteristics of the semen before examining sperm concentration, movement, shape and other relevant parameters.

Step 4: Your Results Are Interpreted

This part matters. A semen-analysis result shouldn’t simply be divided into “fertile” or “infertile. “Semen parameters can vary between samples, and a result outside a laboratory’s reference range doesn’t automatically mean natural conception is impossible. Your fertility specialist needs to interpret the findings in the context of your overall reproductive health and your partner’s evaluation. In some situations, another semen analysis may be recommended to confirm the findings.

What Do Sperm Count, Motility and Morphology Mean?

These terms can make a semen-analysis report look more complicated than it actually is.

Sperm Concentration

Sperm concentration refers to the number of sperm cells present in a given volume of semen. It is one part of assessing male fertility potential, but it shouldn’t be interpreted in isolation.

Sperm Motility

Motility describes how sperm move. Movement matters because sperm need to travel through the female reproductive tract to reach an egg for fertilizations.

Sperm Morphology

Morphology refers to sperm size and shape. Laboratory professionals examine sperm under a microscope and assess them according to defined criteria. Morphology is only one part of the semen analysis, and an abnormal morphology result alone doesn’t automatically mean pregnancy cannot occur.

Pelvic Ultrasound vs Semen Analysis: What’s the Difference?

Although both may form part of a couple’s fertility evaluation, they assess different things.

Pelvic Ultrasound	Semen Analysis
Primarily evaluates female pelvic and reproductive structures	Evaluates semen and sperm
Uses sound waves to produce images	Uses laboratory examination of a semen sample
Can assess the uterus and ovaries	Assesses factors such as sperm concentration, motility and morphology
May identify structural concerns such as fibroids or ovarian cysts	May identify sperm-related factors that could affect conception
Usually performed by moving a probe over the abdomen or using a transvaginal probe	Usually requires collection of a semen sample

This is one reason fertility evaluation shouldn’t focus on only one partner.

Why Might Both Partners Need Fertility Testing?

Fertility is a couple’s issue, not automatically a woman’s issue or a man’s issue.

Difficulty conceiving may be associated with female factors, male factors, a combination of both, or sometimes no clear cause despite testing.

Evaluating both partners can therefore help the fertility team build a clearer picture instead of making assumptions about where the problem lies.

For example, one partner’s pelvic ultrasound may appear reassuring while semen analysis identifies a sperm-related concern. In another couple, semen parameters may fall within expected ranges while further investigation identifies a female reproductive factor.

The point isn’t to find someone to blame. It’s to get useful information.

How to Prepare for Your Fertility Tests

A little preparation can make the process easier.

Before a pelvic ultrasound:

1. Confirm whether you’re having a transabdominal or transvaginal scan.
2. Ask whether you need a full bladder.
3. Wear comfortable clothing.
4. Tell your healthcare professional about relevant symptoms, previous procedures or concerns.
5. Follow any instructions your clinic gives you about the timing of the scan.

Before a semen analysis:

1. Follow your clinic’s recommended abstinence period.
2. Use the collection container provided or approved by the laboratory.
3. Don’t use ordinary lubricants unless specifically approved.
4. Try to collect the entire sample.
5. Record the collection time if instructed.
6. Tell the laboratory if part of the sample was lost.
7. If collecting at home is permitted, follow the clinic’s instructions about transportation and how quickly the sample must reach the laboratory.

Your clinic’s instructions should always take priority because laboratory protocols can differ.

Common Myths About Pelvic Ultrasound and Semen Analysis

Myth 1: An abnormal semen analysis means a man is infertile

Not necessarily, Semen parameters can vary, and one abnormal parameter doesn’t automatically mean conception is impossible. Further assessment or repeat testing may be recommended.

Myth 2: A normal pelvic ultrasound means there can’t be a female fertility problem

No.A pelvic ultrasound provides valuable structural information, but it doesn’t evaluate every possible cause of infertility. Hormonal testing, assessment of the fallopian tubes or other investigations may still be necessary.

Myth 3: Semen analysis only checks sperm count

Sperm count or concentration is only part of the assessment. A laboratory may also evaluate motility, morphology, semen volume, vitality and other characteristics.

Myth 4: A transvaginal ultrasound should be extremely painful

It may cause pressure or temporary discomfort, but it generally shouldn’t cause significant pain. Tell your healthcare professional if you’re experiencing pain during the examination.

Myth 5: Only the woman needs fertility testing

No. Male and female factors can both contribute to difficulty conceiving, which is why evaluation of both partners may be appropriate.

When Should You Consider a Fertility Evaluation?

If pregnancy hasn’t happened despite regular unprotected intercourse, speaking with a fertility specialist can help you understand whether testing is appropriate.

You may also be advised to seek assessment sooner depending on factors such as age, irregular or absent periods, previous reproductive problems, known medical conditions, previous surgery or concerns about male reproductive health.

You don’t have to wait until you’re certain something is wrong. Sometimes the purpose of an evaluation is simply to understand what’s happening and decide what—if anything—needs to happen next.

The Bottom Line

A pelvic ultrasound and semen analysis are common parts of fertility evaluation, but they look at different sides of reproductive health.

A pelvic ultrasound provides information about structures such as the uterus and ovaries. Semen analysis evaluates characteristics of semen and sperm, including concentration, motility and morphology.

Most importantly, neither result should be viewed in isolation.

Fertility assessment works best when your results are interpreted together with your medical and reproductive history and, where appropriate, the evaluation of both partners.

If you have concerns about your fertility or have been trying to conceive without success, a consultation with a fertility specialist can help determine which investigations are appropriate for you.

For SEO, I’d use “pelvic ultrasound and semen analysis” as the primary keyword, with “pelvic ultrasound for fertility,” “semen analysis test,” “fertility tests for couples,” “what happens during a pelvic ultrasound,” “what happens during semen analysis,” “male fertility test,” and “fertility evaluation” as secondary/long-tail terms. The article deliberately avoids presenting a single semen result as a definitive fertility diagnosis because clinical guidance notes that results can vary and may need repeat testing. 

For the medical details, pelvic ultrasound guidance confirms the transabdominal/transvaginal procedures, typical preparation, structures examined and lack of ionising radiation; semen-analysis guidance supports the collection procedure, abstinence instructions and assessment of concentration, motility and morphology.