Understanding a PSA result: a raised number is not automatically cancer

You have usually arrived here with a number on a printout, a letter that says your PSA is raised, or a plan to get the test because a birthday, a family history or a worried friend has made the prostate feel suddenly relevant. The figure looks like a verdict, and it is not: PSA is a protein made by the prostate, and a raised result is not automatically cancer. NHS pages say the same thing in plainer language: a high PSA does not mean you have cancer, and it may be for other reasons, such as an enlarged prostate.

That is why understanding a PSA result is a clinical job rather than a spreadsheet job. At Medical Express Clinic the GP reads the figure with your age, your symptoms, the examination, and, depending on the screening tier, a Prostate Profile or a prostate MRI. This article is about what that number can show, and which appointment belongs to the question you brought.

What is PSA, and what is it not?

Prostate-specific antigen is a protein produced by the prostate. Prostate Cancer UK describes the gland as usually the size and shape of a walnut, sitting under the bladder, growing bigger with age, with a main job of helping to make semen. High levels in the blood may be a sign of a prostate condition, which is why the NHS uses the test to help check for prostate cancer or an enlarged prostate.

The test is not a cancer diagnosis, not a yes-or-no screen, and not a lifetime all-clear. Prostate Cancer UK notes that about 1 in 8 men in the UK will get prostate cancer in their lifetime, that risk rises with age, and that the risk is higher for black men and for men with a family history of the disease. Those facts explain why people ask for the blood test. They do not turn a single figure into a diagnosis.

Some prostate cancer grows too slowly to cause problems, and many men with it will never need treatment. Urinary problems can be mild, unfold over years, and still be a benign prostate problem rather than cancer. That overlap is why a number on its own is a poor substitute for a doctor who has examined you.

Why is a raised result not automatically cancer?

NHS guidance is plain. A high PSA does not mean you have cancer. It may be an enlarged prostate, also called benign prostate enlargement, or other non-cancer changes. Inflammation and infection can lift the figure as well.

If an NHS result is raised, you may be offered another PSA test to check whether the level is still high. If it remains high, a GP may discuss referring you to a specialist for further tests. That public pathway exists.

A low or ordinary-looking figure is not a lifetime all-clear either. The GP still has the examination, the history and, when the tier includes them, the extra laboratory work or the scan. NHS pages also note that a PSA result may not be accurate, and that you may be offered tests and treatment you do not need. You can discuss the benefits and risks with a GP.

How does the GP read the number?

At Medical Express Clinic the PSA is interpreted in clinical context, not against a private age-banded chart published in a blog. The GP reads it with your age, your symptoms and the examination. Depending on the tier you booked, that reading also includes a broader Prostate Profile or a prostate MRI. Further investigation, if it is needed, follows that complete picture.

Age matters because the prostate often enlarges as you get older, and symptoms matter because urinary change, pain or a testicular lump can point the visit away from a planned screen. The examination matters too, since what the doctor finds in the room belongs next to the laboratory number. Family history and previous results belong in the same conversation, so bring letters you already hold, a medication list, and any earlier PSA figure, because a trend can mean more than a one-off printout.

The doctor who leads this service at 117a Harley Street is Dr Mohammad Bakhtiar, GMC 4694470, a GP with a special interest in health screening and men's health. The clinic has practised there since 1984 and is CQC-registered. You do not need a referral.

What is the difference between Essential, Advanced and Elite?

Prostate screening here is three doctor-led tiers rather than a lone PSA blood test posted without a review.

Every tier includes a GP examination, a PSA interpreted in clinical context, and an in-person results review. Appointments run Monday to Friday and last from 30 minutes.

Essential is a GP consultation and physical examination, a PSA blood test, and an in-person review of the result. It suits men who need a clinical assessment and a PSA baseline. Advanced is everything in Essential, with the broader Prostate Profile, for when you want more laboratory information around the same consultation. Elite is everything in Advanced, with bi-parametric prostate MRI, for a more detailed structural assessment. A multi-parametric MRI upgrade can be added on Elite when that scan is offered. The upgrade is not automatic.

Age, symptoms, family history and previous results guide the choice of tier. Result timing varies by tier, because a PSA, a broader profile and an MRI do not return together. The GP then sits with you in person and explains whether monitoring, repeat testing or specialist assessment is appropriate.

When are these tiers the wrong appointment?

These packages are for planned prostate screening with a doctor-led review, separate from sister-clinic prostate screening. If the main issue is urinary symptoms or a testicular lump, a men's urology assessment is the usual visit rather than these three screening tiers. That assessment is GP-led work on a present complaint, with referral when specialist input is needed.

A wider male health check sits in Well Man examinations, which can include prostate testing alongside cardiovascular, hormone and metabolic work. If that broader male check is what you want, do not squeeze it into a prostate tier.

Inability to pass urine, sudden severe testicular pain, or symptoms of a heart attack need 999 or A&E. A planned screening enquiry is not the right route for an emergency. See a doctor promptly, rather than waiting for a screening slot, if you notice blood in your urine or semen, new bone or back pain, or unexplained weight loss.

How should you prepare so the number is worth reading?

NHS advice on preparing for a PSA test is practical and easy to ignore. For 48 hours before the test, do not have anal sex, ejaculate, do anything that leaves you out of breath such as exercise, or ride a bike. Those can increase PSA levels and make the test less accurate. You can eat and drink as usual. If you have a urine infection, you need to wait for 4 to 6 weeks after the infection has cleared, because a urine infection can affect the results.

Say if you have already had a recent prostate examination, a catheter, or another procedure around the gland, and bring previous PSA results if you have them.

What helps beforehand?

Decide whether you are booking planned screening or a problem that is already happening.

• Urinary symptoms or a testicular lump belong in a men's urology assessment.
• A wider male check belongs in Well Man.
• Inability to pass urine, sudden severe testicular pain or heart-attack symptoms belong with 999 or A&E.
• If you are booking a screen, choose the tier by the question, not by how complete the name sounds.
• Essential is examination, PSA and an in-person review.
• Advanced adds the Prostate Profile.
• Elite adds bi-parametric prostate MRI, with a multi-parametric upgrade only when it is offered, not as an automatic extra.
• Keep the 48 hours before the blood test clean of ejaculation, anal sex, breathless exercise and cycling, and postpone the test if a urine infection has not yet been clear for 4 to 6 weeks.
• Put previous results, family history and a medication list in one place so the GP is not reconstructing the story from memory.
• Appointments run Monday to Friday, from 30 minutes, and you do not need a referral.

What should you avoid?

Do not treat a raised PSA as a cancer diagnosis.

• NHS guidance is that a high PSA does not mean you have cancer, and that it may be an enlarged prostate or other non-cancer changes.
• Do not treat an unremarkable PSA as a lifetime all-clear.
• Do not hunt the internet for age-banded cut-offs and diagnose yourself against them.
• The GP here reads the number with age, symptoms, examination and, depending on the tier, the Prostate Profile or MRI.
• Do not book Essential, Advanced or Elite because you wanted a urology assessment of urinary symptoms or a testicular lump.
• Do not book them because you wanted a Well Man check.
• Do not sit on an inability to pass urine, sudden severe testicular pain or suspected heart-attack symptoms because a screening slot exists later in the week.
• Do not arrive having ignored the 48-hour advice, and do not book the blood test in the weeks after a urine infection.
• Do not skip the in-person review.
• If you do want doctor-led prostate screening, with PSA read in clinical context rather than as a lone number, the details sit on the prostate health page, or you can contact the clinic on 020 7499 1991.

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