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Alert – October 20, 2025: Canada Post service disruption may delay FIT Kit mailing and cancer screening letters

Canada Post Service Disruption and Cancer Screening

The Canada Post service disruption may affect the delivery of cancer screening letters and fecal immunochemical test (FIT) kits for colorectal screening. Here is what you need to know about cancer screening services during the disruption.

About the Canada Post Disruption

Unfortunately, we do not know how long the service disruption might last. You can get the latest updates on the Canada Post service disruption from:

Cancer Screening Letter Delivery

Screening results letters

Your primary care provider (doctor, nurse practitioner) is responsible for telling you about your screening test results (HPV test, FIT or mammogram).

Ontario Health also sends personalized result letters to individuals. However, you may notice delays in receiving your screening letters.

  • Ontario Health will courier your test result to you if it is abnormal. All other screening correspondence may be delayed due to the service disruption.
  • If you have an abnormal breast screening result, you will be contacted by your OBSP site to arrange additional tests. You may notice delays in receiving a normal result letter. 

Primary care provider notification of results

Your primary care provider (doctor, nurse practitioner or midwife) will continue to receive your screening results. Ontario community laboratories and OBSP sites are responsible for notifying primary care providers of their patients’ results and will continue to do so throughout the Canada Post service disruption.

Recall letters when it is time to screen

You may notice delays in receiving a recall letter. If you have questions about when you are due for screening, please contact your primary care provider (doctor, nurse practitioner or midwife). 

ColonCancerCheck Fit Kit Delivery

FIT kits will not be delivered until the service disruption ends.

How to drop off a completed FIT kit

To avoid postal delays, please drop off your completed FIT at a specimen collection centre. If you return your FIT by mail, it might be delayed in reaching the lab and you may need to repeat the test.

To find specimen collection centres:

No access to a specimen collection centre

If you cannot access a specimen collection centre, you can still try returning your FIT by mail. If you return your FIT by mail, it might be delayed in reaching the lab and you may need to repeat the test.

Laboratory processing times for fecal immunochemical test (FIT) kits during the Canada Post service disruption

Completed FITs will continue to be tested when received by the laboratory. However, a stool (poop) sample breaks down over time.

  • If your sample is tested between 15 and 30 days after it was collected, the lab may be unable to determine a result and you must redo the test.
  • If your sample arrives at the lab more than 30 days after it was collected, the sample will not be tested and you must redo the test.

You have not received your fecal immunochemical test (FIT) result

Your test result will be mailed to you but it may be delayed due to the Canada Post service disruption. In the event your test result is abnormal and requires follow up, your results will be couriered to you.

If you need to redo your fecal immunochemical test (FIT) 

Please book an appointment with your primary care provider (family doctor or nurse practitioner) to get a requisition for a new FIT kit. 

If you do not have a primary care provider, you may be able to get a FIT kit by calling Health811 at 811 (TTY: 1-866-797-0007).

If your community is part of the Kits-on-Hand program please contact them directly to get a new FIT kit.