PSA levels by age: what your result means and what happens next

Published 22 October 2026

There is no single normal PSA level. Whether a result counts as raised depends on your age, whether you have symptoms and your risk factors, and UK guidance uses different thresholds for different situations. This guide sets out the published UK figures, what pushes PSA up or down, and what happens if your result is higher than expected.

What is a normal PSA level by age?

There is no PSA reading that is normal for every man. PSA is measured in nanograms per millilitre of blood (ng/ml) and tends to rise with age. Most men have a PSA below 3ng/ml, but a level above 3ng/ml may be normal in an older man.

For men with symptoms that could be caused by prostate cancer, the NICE guideline on suspected cancer (NG12) sets age-specific levels at which a GP may refer you to a specialist:

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Sources: Cancer Research UK; Prostate Cancer UK’s summary of NICE NG12 for men with symptoms.

The symptoms NG12 means are urinary symptoms (such as getting up at night to pass urine, frequency, hesitancy, urgency or retention), erectile dysfunction, or visible blood in the urine. These are referral levels, not a line between healthy and cancer, and the guidelines vary slightly between the UK nations.

Why is the threshold different if you have no symptoms?

Because UK guidance treats a man with symptoms and a well man asking for a test differently, and only the first has age bands. NICE NG12 covers men with symptoms; the Prostate Cancer Risk Management Programme (PCRMP) helps GPs counsel men without symptoms who ask about testing.

For men without symptoms who ask for a test, national guidance does not set a fixed referral figure. It notes that most men have a PSA below 3.0ng/ml and leaves the decision to the GP’s clinical judgement. The government has said national guidance on PSA testing in men without symptoms is being updated.

If you have urinary symptoms, your result is compared with the NG12 level for your age; if you have none, your GP weighs it against your risk factors, other health problems and any examination.

Examination counts separately. A prostate that feels abnormal is referred even if the PSA is below the threshold, while a normal examination does not rule cancer out, because most tumours cannot be felt.

Is there a PSA screening programme in the UK?

Not for men in general. In England, ministers have agreed to introduce PSA testing every 2 years from age 45 to 61 for men who have a BRCA2 gene variant and a relevant family history of breast, ovarian, pancreatic or prostate cancer, following a UK National Screening Committee recommendation.

If you are over 50, you can ask a GP about a PSA test, and the test is available to anyone with a prostate. The GP should talk through the benefits and risks first: a raised PSA is often not cancer, a normal PSA does not exclude it, and some cancers found are slow-growing ones that may lead to worry and treatment that was not needed.

Risk also differs. The government’s 2026 impact assessment gives a lifetime risk of diagnosis of 1 in 4 for Black men, compared with 1 in 8 for White men, and Prostate Cancer UK says men whose father or brother has had prostate cancer are two and a half times more likely to develop it. It strongly recommends that Black men and men with a family history talk to their GP about a PSA test from 45.

Why does PSA rise with age?

Because normal prostate cells make PSA as well as cancer cells, and the prostate tends to grow with age. Men with larger prostates are more likely to have a higher PSA even without cancer, which is what the age bands allow for. It also means one figure cannot tell a large benign gland from a smaller gland containing a cancer, the gap that PSA density is designed to close. Infection, inflammation, recent ejaculation, vigorous exercise and some procedures can raise PSA for a while, which is why you may be asked to wait before testing.

What can raise PSA apart from cancer?

Several things, which is why a raised PSA is often not cancer. An enlarged prostate (benign prostatic hyperplasia) and prostatitis can both raise it; our page on chronic prostatitis covers that condition. Other factors raise the reading temporarily:

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Where the intervals differ, ask the doctor arranging your test which they recommend. You can eat and drink as usual. If urine infections keep coming back, see our page on recurrent UTI treatment.

Medicines that can make PSA look lower

5-alpha-reductase inhibitors such as finasteride and dutasteride, used for an enlarged prostate, can reduce PSA and give a false result. Tell whoever orders or reads your test if you take one, and do not stop a prescribed medicine without talking to your doctor.

What is PSA density?

PSA density is your PSA divided by the size of your prostate, measured on a scan: PSA density = PSA level ÷ prostate size. Take two men each with a PSA of 6ng/ml: with a 60ml prostate the density is 0.1ng/ml per ml; with a 30ml prostate it is 0.2ng/ml per ml. The second gland is producing twice as much PSA for its size. PSA density helps your doctor decide if you need further tests.

It is read alongside the MRI and your other risk factors when deciding whether a biopsy is needed and, after a diagnosis of early cancer, helps decide how often check-ups are needed on active surveillance.

My PSA has gone up: what happens next?

Usually a repeat test, then a decision about referral, then an MRI before any biopsy is considered.

1. Check the test conditions. Infection, recent ejaculation, exercise, a catheter or a procedure can explain a raised result; a 5-alpha-reductase inhibitor can hide one.
2. Repeat the test. You may be offered another test to see whether the level is still high. If something else seems to explain the rise, your GP may suggest retesting later, though you can ask to be referred.
3. The GP’s overall assessment. This covers your PSA, any examination, your risk factors, other health problems, urinary symptoms and previous prostate tests. You can have the blood test without an examination if you prefer.
4. Referral. You will usually see a specialist within a few weeks. With symptoms and a PSA above your age threshold, or an abnormal examination, the referral is usually made on a suspected cancer pathway.
5. MRI first. Most men now have an MRI before any biopsy, and whether a biopsy follows depends mainly on the scan, together with PSA density and your risk factors.

If urinary symptoms prompted the test, our pages on problems passing urine and waking at night to urinate cover the non-cancer causes, and your first urology appointment explains the specialist visit.

What does a prostate MRI score mean?

The scan is given a Likert or PI-RADS score from 1 to 5, estimating how likely it is that you have prostate cancer that needs treatment.

• 1 or 2: unlikely. Your doctor may not recommend a biopsy, weighing your age, PSA density and other health conditions, but you can still have one if you want to. If you do not, you are usually monitored by your GP against a recommended PSA level and referred back if it rises.
• 3: borderline; the scan cannot tell. A biopsy is likely to be recommended.
• 4 or 5: likely or very likely. A biopsy is likely to be recommended.

A high score is not a diagnosis: only a biopsy can confirm cancer.

What kind of prostate biopsy is used now?

Most UK hospitals now use a transperineal biopsy, with the needle passing through the skin between the testicles and the back passage, usually under local anaesthetic. Infection is more likely after the older transrectal (TRUS) route. Samples are usually taken from any area seen on MRI and from the rest of the gland, because not every cancer shows on a scan. A small amount of blood in the urine for about two weeks, or in the semen for a couple of months, is normal afterwards (see blood in semen). A negative biopsy can miss cancer, so PSA monitoring may continue.

What if a low-risk cancer is found?

Often, active surveillance: close monitoring, with treatment only if the cancer changes or you choose it. It is usually suitable for localised cancer in Cambridge Prognostic Group (CPG) 1 or 2, sometimes CPG 3, but not CPG 4 or 5. Prostate Cancer UK’s example schedule is a PSA test every three to four months in the first year, then every six months, with a yearly examination and an MRI at 12 to 18 months; how often you have further scans depends on the hospital. A repeat biopsy may only be needed if other tests suggest growth. Research shows this is a safe way for men with low-risk cancer to avoid or delay unnecessary treatment.

When does a PSA concern need urgent help?

A raised PSA on its own is not an emergency. Get same-day help or go to A&E if you cannot pass urine at all despite a full, painful bladder, are passing heavy blood or clots (including after a biopsy), or have a fever with shivering and pelvic or lower back pain. Any other visible blood in the urine needs prompt assessment (see blood in urine).

After a biopsy, Prostate Cancer UK advises:

• going to A&E straight away with signs of sepsis, such as a high temperature, shivering, a fast heartbeat or confusion;
• contacting the hospital team straight away, or going to A&E, with heavy bleeding, lots of clots or sudden inability to pass urine;
• contacting the hospital team straight away (or your GP if you cannot reach them) if you have pain or burning when passing urine, a high or very low temperature, or lower tummy or back pain;
• seeing a doctor straight away if blood in the semen takes longer to clear or gets worse.

If unsure, call NHS 111; in a life-threatening emergency, call 999.

Where can I have a raised PSA reviewed in London?

The Andrology Centre offers consultant-led prostate assessment, described on our prostate specialist page, at HCA at The Shard, HCA at Canary Wharf and HCA at Guy’s Hospital. Our team includes Ms Elsie Mensah, Urology Specialist, whose work covers prostate cancer diagnostics and benign prostatic enlargement, with Mr Maj Shabbir and Ms Raveen Kaur Sandher, Consultant Urological Surgeons. All practise at Guy’s & St Thomas’, named by Newsweek in 2025 as the number one urology service in Europe (see our consultants).

Initial consultations are £300 with Ms Sandher or Ms Mensah and £350 in person with Mr Shabbir; tests are quoted separately (see fees and insurance). Self-funding patients need no GP referral; if you are using private medical insurance, your insurer will usually need one plus pre-authorisation. Call +44 7889 318584 (Monday to Friday, 8am to 4pm) or email contact@theandrologycentre.co.uk.

Frequently asked questions

References and further reading