Semen analysis in Australia: cost, collection and reading the report.
A semen analysis measures the volume of a sample and the number, movement and shape of the sperm in it. It is the first and most informative male fertility test, it takes one sample, and results are read against World Health Organization reference values. At KnowLuna it costs $89, with an optional doctor consult.
What a semen analysis measures
Four core measures do most of the work, and the laboratory reports them together because no single one means much alone.
- Volume: how much semen there is, in millilitres. A low volume often reflects a short abstinence period or part of the sample being missed at collection.
- Concentration: sperm per millilitre, which is what most people mean by "sperm count". The laboratory also calculates the total number in the whole sample, which is the more meaningful figure.
- Motility: the percentage of sperm that are moving, and separately the percentage moving forward, called progressive motility. Forward movement is what gets a sperm to the egg.
- Morphology: the percentage of sperm with a normal shape under strict criteria. Even in men who have recently fathered children, most sperm are irregular, so the threshold is far lower than people expect.
Laboratories also note the time from collection to analysis, the appearance and thickness of the sample, its pH, and whether white cells are present. If no sperm are seen at all, the sample is spun down and examined again before that is reported.
How the sample is collected, and why timing matters
Sperm are alive, and the sample starts changing the moment it leaves the body. Everything about the collection instructions exists to keep the result comparable with the reference values.
- Abstain from ejaculation for 2 to 5 days. The World Health Organization window is 2 to 7 days. Less than two days can lower volume and count because the reserve has not rebuilt; more than about five days can lower motility as older sperm accumulate.
- Collect at the centre, or at home. Most participating collection centres have a private room, and you can also produce the sample at home in the container we send you. The sample must reach the laboratory quickly, usually within an hour, kept at room to body temperature, not chilled and not warmed above body heat.
- Use the sterile container provided, and collect the whole sample, including the first part, which holds most of the sperm. Note the exact time of collection.
- No lubricants, saliva or condoms, unless the laboratory supplies a special collection condom. Ordinary lubricants and latex reduce motility.
- Postpone if you have been unwell. A fever in the previous few weeks can lower a result well after you feel better, because sperm take about ten to twelve weeks to make.
Follow the centre's own written instructions where they differ, since collection conditions vary between laboratories and the report is interpreted against how the sample was obtained.
What a semen analysis costs in Australia
There are two routes, and the price depends on which one you take.
With a GP or specialist referral. Where there is a clinical indication, a semen analysis ordered by your doctor may be bulk billed or largely rebated at some laboratories, leaving little or nothing to pay. Whether it is bulk billed depends on the laboratory and on the referral, so it is worth asking when you book. Prices vary, and the out-of-pocket cost is not always predictable.
Self-pay, no referral needed. You pay a listed price and there is no Medicare rebate, because Medicare does not rebate tests a patient requests for themselves. What you get in exchange is a fixed price, no appointment to obtain the request, and a report written to be read by you rather than filed to a clinic.
KnowLuna's semen analysis is $89 test-only. A KnowLuna doctor requests it at no extra charge after a short questionnaire, or you can upload a request your own doctor has already signed. A 20-minute video consult to talk through the report is an optional +$59. The laboratory and the accreditation standard are the same whichever route you take.
Reading the report: WHO reference values
Australian laboratories report against World Health Organization lower reference limits. These are not pass marks. They are the values at or above which about 95 in 100 men whose partners conceived within a year fall, which means one in twenty of those fertile men sits below a limit on any given measure.
| Measure | WHO lower reference limit | What it usually means |
|---|---|---|
| Volume | 1.4 mL or more | Below this often reflects a short abstinence or an incomplete collection; less commonly a structural cause. |
| Sperm concentration | 16 million per mL or more | Below this is called a low count (oligozoospermia). No sperm seen at all (azoospermia) is always repeated and investigated. |
| Total sperm number | 39 million per ejaculate or more | Concentration multiplied by volume. Often a better guide than concentration alone. |
| Total motility | 42 percent or more moving | Below this is reduced motility (asthenozoospermia). |
| Progressive motility | 30 percent or more moving forward | The measure that matters most for reaching an egg. |
| Morphology (strict criteria) | 4 percent or more normal forms | A low figure is very common and is read alongside count and motility, never alone. |
| Vitality | 54 percent or more alive | Checked mainly when motility is low, to separate sperm that are dead from sperm that are alive but not swimming. |
Ranges vary by laboratory; your report shows the range your lab uses. The figures above are the World Health Organization 6th edition (2021) lower reference limits. Many Australian laboratories still print the earlier 2010 (5th edition) limits, so your report may quote slightly different figures; it shows which set was used.
You may also see summary words on the report. Normozoospermia means all measures are at or above the reference limits. Oligozoospermia means a low count, asthenozoospermia low motility, teratozoospermia low morphology, and the terms combine when more than one measure is below the limit.
What one abnormal result does, and does not, mean
Results from the same man vary enormously between samples. Sperm production takes roughly ten to twelve weeks, so a fever, a virus, heavy alcohol use, heat exposure, poor sleep, an unusually short or long abstinence period, or a spill during collection can all pull one sample down. This is the single most important thing to know before you open a report.
For that reason doctors rarely act on one analysis. The usual step after a result below the reference values is to repeat the sample after about four to twelve weeks, using the same abstinence window so the two can be compared fairly. Two consistent results mean something; one does not.
Equally, a result inside every reference limit is reassuring but not a guarantee. A standard analysis does not assess sperm DNA quality or how well sperm bind to an egg, so a normal report does not rule out every male factor. And a low result does not mean conception is impossible. Plenty of men with a low count or low motility father children.
A laboratory test is one input to a doctor's assessment, not a diagnosis on its own. Where results are consistently outside the reference values, the usual next steps are a hormone panel and a review by a GP or a fertility specialist, who examines and asks about the history a sample cannot capture.
Testing together: the KnowLuna partner tests
A male factor is involved in around half of couples who have difficulty conceiving, yet the woman is very often tested first and alone. Testing at the same time gives a doctor both halves of the picture at once and saves months.
- The semen analysis is the starting point, at $89.
- The male hormone panel checks total and free testosterone, SHBG, FSH, LH, oestradiol and prolactin. It is the usual next step after an abnormal analysis, or where there is low energy or low libido.
- On the other side, the AMH and fertility panel or the preconception check covers ovarian reserve, cycle hormones and the checks recommended before trying.
Common questions
How much does a semen analysis cost in Australia?
It depends on the route. Ordered by your GP where there is a clinical indication, it may be bulk billed or largely rebated at some laboratories, though this varies. Requested by yourself, there is no Medicare rebate and you pay a listed price. KnowLuna's semen analysis is $89 test-only, with an optional 20-minute doctor consult for +$59.
Is a sperm test covered by Medicare?
A semen analysis requested by a doctor for a clinical reason attracts a Medicare benefit, and many laboratories bulk bill it. A test you request for yourself does not, because Medicare rebates apply only to tests ordered by a practitioner for a clinical indication. The laboratory work and the accreditation standard are identical either way.
Can a GP order a sperm test?
Yes. Any GP can write a request for a semen analysis, and for many couples that is the sensible first step, especially if cost matters or there is a wider history to discuss. KnowLuna is an alternative when you would rather not wait for an appointment, or you want a fixed price and a report explained to you directly.
Why wait 2 to 5 days before a semen analysis?
Abstinence standardises the sample so it can be compared with the reference values and with any repeat test. Under two days can lower volume and count because the reserve has not rebuilt. Beyond about five to seven days, more of the sperm are older and motility drops. Use the same window for any repeat sample.
Is 4 percent morphology normal?
Yes, under the strict criteria used by laboratories, 4 percent or more normal forms sits at or above the lower reference limit. The criteria are deliberately harsh, so even in men who have recently fathered children the great majority of sperm are counted as abnormally shaped. Morphology is read together with count and motility, never on its own.
How is a semen analysis done?
After 2 to 5 days without ejaculating, you produce a sample by masturbation into a sterile container, either in a private room at the collection centre or at home. No lubricants, and the whole sample is needed. It goes to the laboratory within about an hour, kept at room to body temperature, where volume, count, motility and morphology are measured. Results usually take a few business days.
Sources and further reading
- World Health Organization: laboratory manual for the examination and processing of human semen, 6th edition (2021)
- Pathology Tests Explained (RCPA): semen analysis
- Healthdirect: male infertility
- Better Health Channel: infertility in men
- Pregnancy, Birth and Baby: sperm health
General information only, not medical advice. If your symptoms are severe or sudden, see a doctor promptly. This page does not replace a consultation with a doctor who knows your history; read our medical disclaimer.