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Prostate cancer & PSA testing

For people who have a prostate. PSA testing is cancer screening, but Ontario has no organized population program for it — it is an individual, shared decision, and Canadian guidance differs.

Who it is for
People who have a prostate and no symptoms. Symptoms or an existing cancer diagnosis need a different approach.
A personal choice
Canadian recommendations differ. Discuss the possible benefits and harms with a healthcare provider. Ontario does not have an organized PSA screening program.
When to discuss it
Often around age 50, or 45 with some risk factors. A known inherited gene variant needs its own plan. Read about the different pathways.
When to stop
Routine screening often stops around 70. This is not an instruction to stop cancer monitoring, abnormal-result follow-up or an inherited-risk plan.
Is it covered?
Screening without symptoms is generally not covered by OHIP. Testing for suspected or diagnosed prostate cancer can be covered. Confirm with your clinician or lab.
On this page
  1. What this page helps with
  2. Who the discussion is for, and who needs another pathway
  3. How to access it in Ontario
  4. Potential benefits and limitations
  5. What the test involves
  6. What happens after an abnormal result
  7. Questions to ask your provider

What this page helps with

A PSA blood test measures prostate-specific antigen, a protein made by prostate cells. This page helps you prepare for a conversation with a provider about whether testing is right for you. It does not recommend for or against testing, does not interpret results and does not set a cut-off; those belong with your clinician.

Symptoms are different from screening. If you have new or concerning symptoms, see a healthcare provider rather than waiting for a screening test. Severe or life-threatening symptoms: call 911 or go to the nearest emergency department. Otherwise a provider, a walk-in or urgent care clinic, or Health811 (811) for advice on where to go.

Who the discussion is for, and who needs another pathway

Canadian recommendations differ. The Canadian Urological Association supports informed, individualized consideration of PSA testing for suitable people who elect it, generally from age 50, or from 45 with increased risk. The Canadian Task Force on Preventive Health Care's published guideline recommends against PSA screening, with different strength by age. The Canadian Cancer Society supports an informed discussion. Ontario's Ministry of Health advises against mass screening and offers information to support an informed decision. These are not a unanimous recommendation to screen — the choice is yours, made with a provider.

Increased risk. A parent, sibling or child with prostate cancer and Black, African or Caribbean ancestry are reasons to discuss testing earlier, often around age 45. A clinician can help assess a strong family pattern of cancer. A broad family history of other cancers does not by itself establish an inherited syndrome.

Known inherited gene variants. If a clinician or genetics service has confirmed an inherited variant linked to prostate cancer, the general starting and stopping ages on this page do not apply. Discuss an individual testing plan with your healthcare provider and a genetics specialist. The plan depends on the specific variant and your situation, rather than one starting age for everyone.

Stopping. Routine PSA screening is generally stopped around 70, or when life expectancy is under about 10 years, because benefit becomes less likely to outweigh harm; decisions can still be individualized. This applies to screening in people without symptoms.

When you need a different plan. Symptoms need assessment. Diagnosed prostate cancer, active surveillance, post-treatment follow-up, or an abnormal PSA awaiting assessment are monitoring or diagnosis — directed by your treating clinician and not affected by any screening stopping age. Stopping population screening is not stopping cancer monitoring.

How to access it in Ontario

A family doctor or nurse practitioner orders the test. In Ontario, a PSA test done purely for asymptomatic screening is generally not OHIP-insured and the laboratory usually charges a fee; the test is insured when a physician or nurse practitioner suspects prostate cancer (family history, race, examination findings or symptoms) or is monitoring diagnosed prostate cancer . Whether a particular risk factor makes your test insured is decided by the ordering clinician — confirm with them or the lab; this site does not quote a price. Without a provider, Health811 (811) or Health Care Connect (811) can help you find one.

Potential benefits and limitations

Screening may find some cancers earlier, and for some people that reduces the chance of dying from prostate cancer. Limitations are real: false positives (a raised PSA with no cancer) leading to biopsies with their own risks; false negatives (a normal PSA does not prove there is no cancer); and overdiagnosis — finding slow-growing cancers that would never have caused symptoms, with treatment side effects such as urinary and sexual problems. Older summaries quote fixed percentages for these; they depend on the population and era studied, so ask your provider what applies to you rather than relying on a single number.

Things that affect a PSA result. Some situations raise PSA without cancer (an enlarged prostate, prostate infection, a recent procedure). Some medications and hormones can lower measured PSA, which affects interpretation. Tell your clinician about all medications and hormones; do not stop them on your own.

What the test involves

A simple blood draw. Your clinician may also discuss a physical examination. Results are interpreted in context — age, prostate size, prior results and medications — by the clinician, not by a single universal number.

What happens after an abnormal result

An elevated PSA is usually followed by a repeat test and a clinical review. Depending on the picture, next steps may include imaging (MRI) or referral to a urologist, and sometimes a biopsy. Many raised results are not cancer. This page cannot interpret your result.

Questions to ask your provider

  • Given my age and risk factors, how do the benefits and harms of testing balance for me?
  • Would the test be OHIP-insured in my situation?
  • Do any of my medications or hormones affect the result?
  • If the result is raised, what would happen next?
  • At what point would we stop routine testing?

PSA conversation guide

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Sources

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