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FIT (Faecal Immunochemical Test) Stool Test

FIT (Faecal Immunochemical Test) Stool Test

Simple and non-invasive colorectal cancer screening

The FIT test (also called the faecal immunochemical test) is a modern screening test for the early detection of colon cancer. It detects hidden blood in stool (a small amount that you may not see with the naked eye) and can indicate changes in the bowel, including early warning signals.

The faecal immunochemical test uses antibodies to detect human blood (human hemoglobin). It is more specific than older occult blood test methods and helps improve fit test accuracy in everyday screening.

Your test kit is discreet and easy to use: collect a stool sample at home during a bowel movement, close the tube following the instructions, and send the sample to our certified lab. Your test results are typically available within a few business days.

Advantages of FIT Screening:

  • Non-invasive: A simple FIT test at home without a procedure or pain.
  • Fast results: Fit results are usually available within a few business days after the sample reaches the lab.
  • Clinical support: We support patients with clear guidance on next steps and further tests when needed.

If the FIT test shows a positive result, it means blood may be present in the stool sample. This does not automatically mean cancer or colon cancer but a positive finding should lead to further investigation and often a colonoscopy, especially in pathways for suspected colorectal cancer in primary care.

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Every Second Colon Cancer Diagnosis Is Still Made Too Late¹

Early detection saves lives : In Europe, a new case of colon cancer is diagnosed every 2 minutes – often only at an advanced stage. Regular stool tests offer an effective way to detect early warning signs.

From the age of 50, colon cancer screening is commonly supported by public health systems in many European countries, including stool-based screening such as the faecal immunochemical test (FIT). Depending on the country and insurer, reimbursement may require obtaining the test through a doctor’s office in primary care.

Colon Cancer Screening Is That Simple With the European Oncology Lab

  • Order Your
    FIT test Online

  • Collect Your Samples
    Comfortably at Home

  • Return Your Samples
    to Our Laboratory

  • Received Your Results
    Within a Few Days

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Ein immunologischer Stuhltest wird von einer Hand gehalten

How Does The Blood in Stool Test Work?

The FIT (faecal immunochemical test) is a screening test for the early detection of colon cancer. It detects hidden blood in stool by targeting human blood (human hemoglobin). Unlike older options such as the guaiac-based occult blood test, it is more specific to bleeding from the lower digestive tract, supporting strong fit test accuracy.

The process is simple: during a bowel movement, collect a stool sample at home using the test kit, seal the tube according to the instructions, and send the sample to our certified lab.

An abnormal or positive result can indicate changes in the bowel, including polyps or an early-stage tumor but it can also reflect other causes. Because a false positive result is possible, medical guidance and further investigation (often a colonoscopy) are recommended, especially in suspected colorectal cancer pathways in primary care.

Frau ergreift die Initiative und bestellt Darmkrebsvorsorge Stuhltest

FIT Compared to Other Stool Tests

The FIT test (faecal immunochemical test) is a widely used approach among screening tests. It focuses on detecting blood in stool, which can signal changes in the bowel. Newer methods, such as tumor DNA stool tests, analyze genetic material in a stool sample and may detect colon cancer at an early stage even without visible bleeding.

Key benefits of the FIT test are ease of use, strong availability in primary care, and cost making it practical for regular screening to help prevent colon cancer and reduce risk.

Tumor DNA tests can offer higher sensitivity in some cases, but they may be more expensive and are not always covered. For many patients, the faecal immunochemical test remains a sensible first step, with further tests based on the results.

Conclusion: Used regularly, the FIT test remains an important part of colon cancer screening—especially when combined with timely further investigation after a positive result.

ColoAlert Verpackung mit DNA Helix

Our Recommendation: ColoAlert for Earlier Colon Cancer Detection

The FIT is a good start and certainly better than doing nothing. However, testing for hidden blood does not identify every tumor in time, and some cancer cases can be missed in the early stage. ColoAlert is a newer stool test that analyzes stool samples for tumor DNA and may identify affected individuals earlier.⁴⁻⁵

Learn More About ColoAlert

Let customers speak for us

from 167 reviews

Dieser Test erspart mir schon seit Jahren eine Darmspiegelung!
Und letztes Jahr wurde - ebenfalls durch den Test - bei meinem Mann Darmkrebs im Frühstadium entdeckt. Nach einer OP und Chemotherapie in Tablettenform, welche er zu Hause durchführen konnte, gilt er heute schon wieder krebsfrei.
Ich empfehle diesen Test immer wieder Freunden und Bekannten!

Beate B.
ColoAlert Stuhltest
Empfehlenswert

Wer eine Alternative zur Coloskopie als Darmkrebs-Prophylaxe sucht, rate ich zum ColoAlert-Test. Neben dem iFOBT erfährt man, ob im Darm OncoGene nachgewiesen werden können, die bei einer Carcinom-Entwickung ein aggressives Wachstum voraus sagen. Der Test ist so einfach wie der iFOBT alleine und wird nur zu Hause vorgenommen. - Die Kommunikation mit dem European Oncology Lab - Team kann ich nur als hervorragend bewerten!

Peter Baselt
ColoAlert Stuhltest
Es ging super schnell, innerhalb weniger Tage

Es ging super schnell, innerhalb weniger Tage habe ich mein Ergebnis erhalten. Die Erklärung des Befundes war detailliert und verständlich. Ich habe ein besseres Gefühl. Vielen lieben Dank. Ich habe diesen Test weiter empfohlen und ihn auch für meine Mutter bestellt.

Katrin L.
ColoAlert Stuhltest
Top Ergebnis

Mir gefällt vor allem die schnelle und leicht verständliche Auswertung. Fühle mich jetzt viel sicherer.

Kim H.
ColoAlert Stuhltest
Rückversand tricky

Das Testmaterial war super, aber der Rückversand war etwas umständlich, weil ich aus Spanien versenden musste. Insgesamt aber sehr zufrieden.

Svenja P.
ColoAlert Stuhltest
Zweiter Test

Das ist bereits mein zweiter Test und wieder war alles reibungslos. Klare Empfehlung meinerseits!

Olaf M.
ColoAlert Stuhltest
Einfach gesamtbildlich betrachtet hervorragend

Rasche und sehr gute verständliche Erklärung der Untersuchungsergebnisse! Einfach gesamtbildlich betrachtet hervorragend und unbedingt weiterzuempfehlen! Die Weiterleitung an meine Krankenkasse ist am Laufen!

Sibylle B.
ColoAlert Stuhltest
Ein junges Paar ist glücklich, dass sie rechtzeitig zur Darmkrebsvorsorge gegangen sind.

Why the Faecal Immunochemical Test (FIT) Can Be Useful Before the Age of 50

Colon cancer is no longer a disease that only affects older people. Studies show that diagnoses in younger adults between 20 and 49 are increasing.² In this group, symptoms are sometimes overlooked or misinterpreted, especially when bleeding is mild or intermittent and the toilet bowl looks normal.

A FIT test gives you a simple way to check for hidden blood using a stool sample with a test kit you can use at home. If additional risk factors are present (for example family history, certain lifestyle factors, or chronic conditions such as inflammatory bowel disease), earlier screening and a discussion with a doctor in primary care can be beneficial.

Frequently Asked Questions

Who Should Get Screened?

Regular colon cancer screening is recommended for everyone from the age of 50. Younger patients should talk to a doctor in primary care if they have symptoms such as rectal bleeding, blood in the stool, persistent abdominal discomfort, changes in bowel habits, inflammatory bowel disease, or a family history, especially in cases of suspected colon cancer.

Is there Anything I Need to Do Before the Blood in Stool Test?

No - there are usually no special preparations or dietary restrictions for a FIT test (faecal immunochemical test). Simply follow the instructions in your test kit to collect the sample during a bowel movement.

What Happens if the Test Is Positive?

A positive result means the test detected blood in your stool sample. This does not automatically mean colon cancer; there are other causes such as hemorrhoids, minor blood vessels bleeding, or inflammatory bowel disease. Still, you should arrange further investigation - often a colonoscopy - to clarify the finding, especially for suspected colorectal cancer in primary care.

How Often Should the FIT Test Be Performed?

Many screening recommendations suggest a FIT test every two years from age 50 as part of colon cancer screening, particularly if no colonoscopy is performed. If symptoms are present or risk is higher, a doctor may advise different intervals and further tests.

Is the FIT Covered by Health Insurance?

In many European health systems, the FIT is part of colorectal cancer screening programs from around age 50 (often every two years). Coverage and eligibility can vary by country and insurer, and in some cases the test needs to be obtained through a doctor’s office in primary care.

What to Do if You Experience Anxiety After a Positive FIT Test?

A positive or abnormal result is not a reason to panic. A FIT test can be positive for different reasons, and a false positive result is possible. The key is to take the next step seriously and proceed with further investigation (often a colonoscopy) so patients get clarity and, if needed, early referral and treatment.

References

1) Robert Koch Institute and the Association of Population-Based Cancer Registries in Germany (2023). Cancer in Germany for 2019/2020, 14th edition. 2) Vuik, FE, Nieuwenburg, SA, Bardou, M., Lansdorp-Vogelaar, I., Dinis-Ribeiro, M., Bento, MJ, Zadnik, V., Pellisé, M., Esteban, L., Kaminski, MF, Suchanek, S., Ngo, O., Májek, O., Leja, M., Kuipers, EJ, & Spaander, MC (2019). Increasing incidence of colorectal cancer in young adults in Europe over the last 25 years. Gut, 68(10), 1820–1826. https://doi.org/10.1136/gutjnl-2018-317592 3) Johnson, CM, Wei, C., Ensor, JE, Smolenski, DJ, Amos, CI, Levin, B., & Berry, DA (2013). Meta-analyses of colorectal cancer risk factors. Cancer Causes & Control: CCC, 24(6), 1207–1222. doi.org/10.1007/s10552-013-0201-5 . 4) Krammes, L., Mahmood, HA, Frondorf, FMB, Scholz, CF, Becker, P., Maharjan, S., Sever, AE, Garapati, SV, Balasubramaniam, A., Knabe, MJ, Eidens, MR, Dollinger, MM (2025). State-of-the-Art Colorectal Cancer and Advanced Precancerous Lesion Screening: a Multitarget Stool DNA Test, Clinical Laboratory, 71(1), 34-39. doi.org/10.7754/Clin.Lab.2024.240620 ; Dollinger, MM, Behl, S., & Fleig, WE (2018). Early Detection of Colorectal Cancer: a Multi-Center Pre-Clinical Case Cohort Study for Validation of a Combined DNA Stool Test. Clinical Laboratory, 64(10), 1719-1730. doi.org/10.7754/Clin.Lab.2018.18052 5) Gies, A., Cuk, K., Schrotz-King, P., & Brenner, H. (2018). Direct Comparison of Diagnostic Performance of 9 Quantitative Fecal Immunochemical Tests for Colorectal Cancer Screening. Gastroenterology, 154(1), 93-104. doi.org/10.1053/j.gastro.2017.09.018