SUPPORTCOLON

Colonox FIT Stool Test

We’re here to help you understand your results!

Upload your photo Or read it yourself

Reviewed by a member of our support team, not software and not a clinician. Reply within one business day.

Colonox FIT Stool Test

Read your result

What your result might look like.

The C line is the control. It has to be there for the test to have worked.
The T line is the result. Read between 10 and 30 minutes.

  • Positive

    Positive

    A line at C and a line at T

    What it means

    The test found blood in your sample that you wouldn't be able to see. Faint counts — if there's any pink at T, however light, that's a positive.

    What it doesn't mean

    This isn't a cancer result, and it doesn't say where the blood came from. Hemorrhoids, a small tear, inflammation and polyps all look the same here.

    What to do next

    Bring this to your provider. They'll decide whether anything needs a closer look.
    Talk to a provider
  • Negative

    Negative

    A line at C only, nothing at T

    What it means

    No hidden blood was found in this sample. The test ran properly and came back clear.

    What it doesn't mean

    It doesn't rule everything out. Polyps can bleed on and off, and blood isn't spread evenly through a sample, so one clear result isn't the whole picture.

    What to do next

    Nothing right now. Most guidance suggests testing once a year — and if something feels off in the meantime, mention it to your provider anyway.
    Learn more
  • Invalid

    Invalid

    Nothing at C — with or without a line at T

    What it means

    The control line didn't appear, so the test didn't run. There's no result to read here, either way.

    What it doesn't mean

    It isn't a positive and it isn't a negative. It tells you something about the test, not about you.

    What to do next

    Run a fresh test with a new sample. If a second one also comes up blank, get in touch and we'll send a replacement.
    Learn more

Send us a photo

Still not sure what you’re looking at?

Faint lines are common and hard to call on your own. Send a photo and someone on our team will look at it with you.

01

Place the cassette inside the outline on the card that came in your kit. The color blocks help us judge the photo accurately.

02

Take the photo between 10 and 30 minutes after you applied the drops.

03

Use daylight if you can, and hold the phone straight above the card.

How this works

Your photo is reviewed by a member of our support team. They are not healthcare professionals and cannot diagnose a condition or advise on treatment. What they can do is help you read what your test is showing.

Nothing here is automated. Your photo stays confidential and is used only to answer you.

Lost the card from your kit? You can still send a photo. Put the cassette on a plain white surface in good light.

Upload your photo

Before taking the test

A few things worth knowing first.

Most invalid results come from one of these. Two minutes here saves a repeat test.

  1. Check the expiry date printed on the foil pouch. Don’t use a kit past it — the result won’t be reliable.
  2. If the kit has been somewhere cold, let it sit at room temperature for about 30 minutes before you open the pouch.
  3. Collect your sample before it touches the toilet water. The collection paper in the box is for this — place it across the bowl first.
  4. Once the drops are applied, read the result between 10 and 30 minutes. After 30 minutes it’s no longer valid.
  5. You don’t need to change your diet beforehand. But wait if you’re bleeding — during your period, or from hemorrhoids — until three days after it stops.

Directions for use

How to take it.

About fifteen minutes, most of it waiting. The part you do takes under two minutes.

  • STEP 01

    Place the paper

    Lay the collection paper across the toilet bowl so the sample stays out of the water.

  • STEP 02

    Take the sample

    Scrape the grooved tip of the collection stick across the sample in six different places. Enough to cover the grooves is enough.

  • STEP 03

    Apply three drops

    Seal the stick back into the tube and shake it. Hold the tube upright, unscrew the red cap, and squeeze three drops into the sample well.

  • STEP 04

    Read your result

    Set a timer and leave the device flat. Lines can take the full ten minutes to appear.

Read between 10 and 30 minutes. Earlier than 10, a faint line may not have developed. After 30, the result is no longer valid — anything that appears later shouldn't be read.

WATCH IT DONE

The whole thing, start to finish.

Documents

Everything in writing.

Questions

The ones we hear most often.

Any visible T line, however faint, is read as a positive. Color intensity doesn't indicate how much blood is present. If you're unsure whether you're seeing a line at all, send us a photo and someone will look at it with you.

No. Results read after 30 minutes aren't valid, and lines that appear late shouldn't be interpreted. Use a fresh test and set a timer for 10 minutes.

You can still send a photo. Put the cassette on a plain white surface in good daylight and shoot straight down. There's also a printable version in the Documents section above.

Menstrual blood can affect the result, so it's better to wait until three days after your period has finished. The same applies if you have visible bleeding from hemorrhoids.

No. This test reacts to human hemoglobin specifically, so food and most medications won't interfere with it the way they can with older stool tests.

Human hemoglobin in stool, at levels too small to see. Blood that isn't visible is described as occult, or hidden. Read more about this marker →

Still need help

 Talk to someone.

No scripts, no phone tree. Whichever is easiest for you.

  • Running low

    Colonox FIT Stool Test

    1, 2 and 3-test packs

  • Often used alongside

    Urinox-10 Urinalysis Test Strips

    Ten markers from one strip, including blood in urine

    Learn more

Colonox FIT detects hidden blood in stool as an aid in the diagnosis of gastrointestinal bleeding. It is not a diagnosis, and it is not a substitute for the screening your provider recommends. Talk to your provider about your result.