Ontario Lowers Colon Cancer Screening Age to 45

As of July 1, 2026, Ontario lowered the routine colorectal cancer screening age from 50 to 45 — making roughly 1 million more Ontarians eligible for a free, at-home test. Ontario is only the second province in Canada to make the change, after Prince Edward Island did so in March 2026. The shift comes as doctors report a "notable" rise in colorectal cancer diagnoses among younger adults.

If you're between 45 and 74, here's what changed, how the test actually works, and what to do if you don't currently have a doctor to order it.

What's changing, and why

Colorectal cancer is one of the most treatable cancers when it's caught early — Cancer Care Ontario says nine out of ten cases are curable if detected in the early stages. Part of why screening matters so much is timing: it typically takes about 10 years for a small, benign polyp to grow into cancer, which gives a well-timed test a wide window to catch it first.

For decades, Ontario's ColonCancerCheck program started routine screening at age 50. But colorectal cancer rates have been climbing among people in their 40s and even younger, prompting Ontario Health to move the threshold down five years, matching new national guidance.

"We should all be able to have the same advantages to prevent the disease," Colorectal Cancer Canada president Barry Stein said of the change.

How the FIT test works

The screening tool is the FIT — a fecal immunochemical test — a simple, private, at-home kit that checks a stool sample for microscopic traces of blood, an early warning sign of polyps or cancer. There's no fasting, no dietary restriction, and no clinic visit required to complete it.

Here's the process:

• Eligibility: Ontarians aged 45–74 at average risk (no personal or strong family history of colorectal cancer or related conditions).
• How you get one: A doctor or nurse practitioner submits a ColonCancerCheck FIT requisition, and the kit is mailed directly to you — you can't currently pick one up without a provider ordering it.
• Frequency: Every 2 years if your result is normal.
• Abnormal result: Ontario Health recommends a follow-up colonoscopy within 8 weeks. Doctors are advised not to simply repeat the FIT, since that only delays diagnosis.
• Higher-risk individuals: If colorectal cancer runs in your family, guidelines call for starting colonoscopies — not FIT — at age 40, or 10 years before the age your relative was diagnosed, whichever comes first. Talk to a doctor about your family history before assuming the standard FIT schedule applies to you.

The catch: you need a provider to order it

This is where access becomes the real barrier for a lot of newly eligible Ontarians. The FIT kit isn't something you can request directly from a pharmacy or the government — it has to be ordered through a healthcare provider. If you already see a family doctor, the easiest step is booking an appointment (or messaging through your patient portal) to ask for a ColonCancerCheck requisition now that you're in the eligible age range.

If you don't have a regular family doctor, you're not out of options:

• A walk-in clinic can often assess your eligibility and submit the requisition on the spot.
• Urgent care centres can also help if a walk-in isn't available nearby.
• Search CanClinics for clinics in Toronto or Mississauga — or browse by city anywhere in the province — to find a provider taking new patients or same-day visits.

Don't wait for a scheduled physical to bring it up. Screening requisitions are a quick, routine ask that most walk-in and family clinics can handle in a single visit.

Symptoms that need attention now — not just screening

FIT screening is for people with no symptoms. If you're already noticing warning signs, don't wait two years for a routine test — get evaluated promptly. See a doctor soon if you have:

• Blood in your stool, or stool that's unusually dark or tarry
• A persistent change in bowel habits lasting more than a few weeks
• Unexplained weight loss
• Ongoing abdominal pain or cramping

Go to the emergency room or call 911 if you experience heavy rectal bleeding, severe abdominal pain, fainting, or signs of significant blood loss (dizziness, rapid heartbeat, pale skin) — these need immediate care, not a screening referral. You can check current ER wait times before you go if your symptoms are urgent but not life-threatening.

The bottom line

Ontario just expanded who qualifies for a proven, low-effort cancer screening test — but the benefit only reaches you if a provider orders it. If you're 45 or older and haven't had this conversation with a doctor yet, that's the one thing to act on this week.

FAQ

Do I need to fast or change my diet before a FIT test? No. Unlike some older stool tests, the FIT requires no dietary changes or medication restrictions beforehand.

Can I get a FIT kit without seeing a doctor first? Not currently in Ontario — a physician or nurse practitioner must submit the requisition before the lab mails you a kit. If you don't have a regular provider, a walk-in clinic can usually order one.

What if my FIT result comes back abnormal? You should be referred for a colonoscopy, ideally within 8 weeks. An abnormal result doesn't mean you have cancer — most polyps found this way are treatable — but it does mean follow-up shouldn't be delayed.

I'm under 45 but worried about symptoms or family history. What should I do? Screening guidelines are for average-risk, symptom-free people. If you have symptoms or a family history of colorectal cancer, see a doctor regardless of age to discuss earlier colonoscopy screening.

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Ready to find a provider who can order your screening test or address your symptoms? Search walk-in clinics, family doctors, and urgent care near you on CanClinics.

This article is for general information only and is not medical advice. Talk to a healthcare provider about your personal risk and screening needs. Source: CBC News.

— CanClinics Team