Whether positive or negative, a self-test result is a starting point for a conversation about your symptoms with your doctor. Self-testing provides a preliminary screen of physiological biomarker levels, but is not a diagnosis. Always speak with your doctor if you are concerned about your symptoms or anxious about your health.
SELFCHECK
Faecal Immunochemical Test (FIT)
Faecal Immunochemical Test (FIT)
Buy 1 Get 1 half price
Buy 1 Get 1 half price
Order 2 tests and get the lower priced test for 1/2 price
UK delivery £3.95 (FREE for orders over £30)
UK delivery £3.95 (FREE for orders over £30)
Order before 2pm Monday to Friday for same day dispatch (except holidays). All orders dispatched with Royal Mail 24*
Plain packaging
Plain packaging
Discreet plain packaging on all orders.
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Intended use
The SELFCHECK Faecal Immunochemical Test (FIT) is registered with MHRA as a CE certified, in-vitro diagnostic medical device for self-testing.
- Faecal sample
- Hygienic, safe and easy to use
- Results at home in minutes
- CE certified for self-test use
Contains 1 test.
This test is a highly specific, manual, qualitative, immunochromatographic (lateral flow), screening test for the detection of occult (hidden) blood in a stool sample, and is specifically designed for use at home by members of the public for the screening of colorectal abnormal bleeding disorders. Colon polyps can bleed intermittently, this test requires a stool sample to be collected on three different days, which increases the chance of detecting hidden blood compared to tests that only use a single sample on one occasion.
General information
Faecal immunochemical tests (FIT) detect traces of blood that can not be seen by eye in a sample of faeces, and are used in bowel cancer screening programmes. Nevertheless, there are many reasons, including ulcers, colitis or haemorrhoids as to why blood may be found in the faeces. Bowel cancer is more common in people over the age of 50, but it can affect anyone of any age. You should carefully consider what the result might mean to you before you decide to test.
Time to result
The test gives a result in 10 minutes at home and is unaffected by diet.
Warnings
A screening test for a single biomarker, such as traces of blood in a faecal sample, is not a diagnosis.
Not following the instructions exactly as written in the instructions for use may cause a false positive or false negative result.
Do not change your medication, diet or lifestyle solely on the basis of a self-test - always discuss your result with an appropriate healthcare professional first.
- Do not use this test if you have diarrhoea or acute bleeding haemorrhoids
- Women should not use the test during, or up to 3 days after their period
- Patients taking anti-platelet drugs may show false positive results
The test is a lateral flow test to detect human blood in faeces. Although faecal immunochemical tests are used for bowel cancer screening, blood may be present in faeces for other reasons such as ulcers, colitis or haemorrhoids. Colon polyps are known to bleed intermittently, and testing samples from three different days increases the probability of detecting blood compared to sampling on just one occasion.
Accuracy
This test has a cut-off of 40μg Hb/g faeces for a positive result, which is slightly more sensitive than current UK bowel cancer screening programmes (2026), and has an overall agreement of 93% (86.78 - 97.17*), sensitivity of 90% and specificity of 100% with laboratory faecal immunochemical tests. Although this test is reliable for the detection of hidden blood in a faecal sample, all medical tests can give false positive or false negative results.
IMPORTANT: These figures refer to the agreement of the SELFCHECK test with laboratory faecal immunochemical tests, and not to the accuracy of tests for the diagnosis of bowel cancer.
*95% confidence interval.
Information for health care professionals
Principle, performance data, and regulatory information regarding the SELFCHECK Faecal Immunochemical Test (FIT) is available for health care professionals.
Revision 14th April 2026.
What SELFCHECK users say
What SELFCHECK users say
We invited SELFCHECK customers to tell us about their experience with their SELFCHECK test.
- 4/5 overall rating
- 9/10 easy to read instructions
- 4/5 thought that using the test was worthwhile
"All appeared good and instructions easy to follow"
"Everything was easy to follow"
"Very satisfied with your service"
"Simple enough, just had to check the instructions a couple of times"
The survey was completed in the Summer of 2024 of 118 random respondents who purchased one of our SELFCHECK tests. All customers are provided with contact information for our customer care team with their test, if they need any help to use their SELFCHECK test, or help to interpret their results.
For further information on how the scores were calculated please contact SELFCHECK.
Information for doctors
Information for doctors
SELFCHECK has been a leading British brand of health checks for over 15 years.
At SELFCHECK, we're working hard to make self-testing better for your patients. All our medical tests are assembled at a quality assured (ISO13485) medical device facility in France, and registered with MHRA according to UK medical device regulations IVDD/IVDR.
We are working closely with the NHS and academia to develop new diagnostics at our own UK R&D labs, particularly in the areas of sepsis, and the monitoring of chronic diseases.
Our professional customer care team provide help for your patients, so they can fully understand how our tests work, and how they should be used.
Important to know
All SELFCHECK medical tests are CE certified according to UK and EU regulations, and registered with MHRA as self-testing devices.
Our tests are based on the same principles used by hospital labs, and provide reliable, meaningful results, but self-testing is not meant to replace established NHS healthcare pathways. Always consider what a positive or negative result will mean to you before testing, and be aware of the limitations of the test you are using.
If you have symptoms that concern you, or are anxious about your health, always speak with your pharmacist or doctor.