Understanding Semen Analysis

For couples facing difficulty conceiving, a semen analysis is often one of the first and most important steps in the evaluation process. It is a simple test that provides a great deal of information about male fertility, and it can help guide the next steps in your journey toward building a family.

Because male factors account for a significant share of fertility challenges, evaluating the semen early in the process can save time and point you and your medical team in the right direction. Understanding what the test measures — and what the results mean — can help you feel more informed and less anxious as you move forward.

This article explains what a semen analysis is, which measurements it includes, and the halachic considerations that arise when performing this test. We at PUAH work with couples on exactly these questions every day, and we are here to help.

Why Semen Analysis Matters

Between 30% and 50% of fertility difficulties are related to issues with the sperm. For this reason, it is important to evaluate the semen at a relatively early stage when investigating fertility concerns. A semen analysis is the basic, first-line test used to assess male fertility, and in many cases it provides the clarity needed to plan next steps.

What a Semen Analysis Measures

A semen analysis looks at several measurements. The most important ones are described below.

Sperm Concentration

This measures the number of sperm cells in each milliliter of fluid. A result of more than 15 million cells per milliliter is considered normal.

Motility

This measures the percentage of sperm cells that are moving, as well as the type of movement. A result of more than 40% of cells moving, or more than 25% showing rapid, forward (progressive) movement, is considered normal.

Morphology (Structure)

This measures the percentage of sperm cells that have a normal shape. Today, a result of 4% or more normally-shaped cells is considered normal.

Additional Measurements

The analysis also examines other factors, such as the volume of the semen and its acidity (pH). These measurements are sometimes important and can offer additional clues about underlying issues.

Key Points to Remember

Halachic Perspective

Because of the halachic prohibition against the wasteful emission of seed (hotza'at zera levatala), a semen analysis is considered halachically complex. There are differing approaches among the poskim as to whether, when, and how such a test should be performed. In practice, performing any semen analysis requires halachic permission from a posek who is well-versed in both the halachic and medical aspects of the subject.

Even when a semen analysis is permitted, there are specific halachically-acceptable methods for collecting the sample. The main approaches are described below.

Vaginal Collection (Post-Coital / "PCT" Cup)

This is generally the first method used by someone who is committed to halacha and has been asked to perform a semen analysis. The couple has ordinary marital relations, after which the wife collects part of the semen that is naturally emitted from her body using a sterile cup. The cup is then brought to the laboratory within one hour.

This is considered the best method from a halachic standpoint, because it is based on natural marital relations. On the other hand, this method can affect the reliability of the results — though in most cases the impact is not significant, and the test is considered reliable enough for an initial diagnosis. When the result is normal, this is usually sufficient and no further test is needed. When the result is abnormal, an additional test is generally required, and you should consult a posek about whether and how to perform it.

Sterile ("Halachic") Condom

This method is chosen when a sperm problem is suspected following a vaginal collection, or when providing a sample as part of fertility treatment. The couple has ordinary marital relations using a special condom that contains no spermicide and is stored in a way that keeps it sterile. A small hole is made in its tip. After relations, the husband removes the condom containing the semen, places it in a prepared sterile cup, and brings it to the laboratory within one hour.

It is important to note that the sterile condom is not sold in regular pharmacies. It is available only in designated places, such as certain fertility laboratories or at PUAH. While some refer to it as a "halachic condom," this name does not serve as blanket permission for its use. In some cases, this additional test can be combined with a fertility treatment in which the sperm is also used toward the possibility of conception. When done under appropriate halachic supervision, this option has halachic advantages, though it is not always practical.

Withdrawal Method (Collection Into a Cup)

This method is used in unusual cases where the couple is unable to perform the test using a sterile condom, despite receiving proper guidance. The couple has ordinary marital relations, and as emission approaches the husband withdraws and emits into a prepared sterile cup.

According to most poskim, this method is less preferable halachically than the sterile condom (and medically it is also considered less successful). However, since the sample is still given within the framework of marital relations, most poskim permit it when the couple is unable to provide a sample using the sterile condom.

A Note on Other Methods

Manual emission is considered very problematic from a halachic standpoint, even within a fertility evaluation. Because a semen analysis is not limited to a particular time of the month, there is usually an opportunity to perform the test using one of the methods described above. Even in unusual cases — such as an unmarried man who has received permission to perform the test — there are methods that use a special device called PVS, which causes emission without the need for manual collection. The use of any exceptional method should be reserved for unusual circumstances only, and only after receiving explicit halachic permission from a posek who is knowledgeable in this area.

Specific questions should be discussed with a qualified rabbinic authority. Our team at PUAH is available to help you navigate these questions.

When to Speak With a Professional

If you and your spouse have been trying to conceive without success, a semen analysis is often a sensible early step — but it should be approached thoughtfully. Speak with your physician about whether the test is appropriate for your situation, and reach out to PUAH before scheduling it so that the halachic questions can be settled in advance.

PUAH's team of doctors and rabbis specializes in exactly these situations. We can help you choose the right collection method, connect you with appropriate laboratories, and obtain the halachic guidance you need. If an initial result is abnormal, we can also help you understand the next steps and how to perform any follow-up testing in a halachically-appropriate way.

Summary

A semen analysis is the basic first test for evaluating male fertility, measuring concentration, motility, morphology, and other factors. Because the test raises significant halachic questions, it should be performed only with the guidance of a qualified posek using one of the accepted collection methods. We at PUAH are here to help you navigate both the medical and halachic aspects of this process.

Disclaimer

This article is intended for educational purposes only and should not replace medical advice from a qualified healthcare professional. Personal halachic questions should be discussed with a qualified rabbinic authority.