Faecal Immunochemical Test
FIT stool testing for microscopic human blood, supporting bowel screening and investigation of possible lower gastrointestinal bleeding.
Turnaround time
3 days
Biomarkers count
1
Book your test
Choose Service Type
Professional phlebotomist comes to you
+ £{{ home_visit_fee }}
Visit our clinic for your test
{{ clinic_visit_fee > 0 ? '+ £' + clinic_visit_fee : 'Free' }}
Home Visit Details
Home visits require at least 24 hours notice.
Select a clinic: Sorting by distance…
{{ clinicAddress(clinic) }}
{{ clinicAddress(selectedClinic) }}
Select a date
Select an hour
Available time slots: {{ timeSlots.length}}
Overview of the Faecal Immunochemical Test Test
The Faecal Immunochemical Test, commonly called FIT or QFIT, is a non-invasive stool test that measures very small amounts of human haemoglobin within faeces.
Blood can be present in the bowel without being visible to the naked eye.
FIT is widely used in bowel-screening pathways and during investigation of selected lower gastrointestinal symptoms because it can identify microscopic bleeding.
A positive result does not mean that bowel cancer is present.
Bleeding can occur for many reasons, including polyps, haemorrhoids, inflammation and other gastrointestinal conditions.
Likewise, a negative result cannot completely exclude bowel cancer or another significant bowel condition.
Persistent or concerning symptoms therefore require appropriate clinical assessment even when FIT is negative.
The Faecal Immunochemical Test costs £68.
What Does the Faecal Immunochemical Test Test Check?
The test measures microscopic human haemoglobin within a stool specimen. This test measures 1 specialist biomarker.
Faecal Haemoglobin / Quantitative Faecal Immunochemical Test
Detects and quantifies microscopic human haemoglobin in stool, providing information about occult lower gastrointestinal bleeding.
Who May Benefit From the Faecal Immunochemical Test Test?
FIT may be useful as part of bowel screening or when a clinician wants to investigate possible occult gastrointestinal bleeding.
Adults participating in bowel screening - FIT is widely used within bowel-cancer screening pathways.
People with a persistent change in bowel habit - FIT may contribute to investigation, although symptoms still require clinical assessment.
People with unexplained Iron deficiency or anaemia - Occult gastrointestinal blood loss may form part of the investigation.
People with selected lower gastrointestinal symptoms - FIT can provide additional information about microscopic bleeding.
People with relevant family or clinical risk factors - Testing may be recommended as part of a broader assessment.
People advised by a GP or gastroenterologist to complete a FIT - The quantitative result can inform decisions about further investigation.
How to Prepare
Avoid contaminating the specimen with urine or toilet water.
Only a small stool sample is required when the supplied collection device is used correctly.
Symptoms and Reasons to Consider the Faecal Immunochemical Test Test
FIT is principally used to identify microscopic blood that cannot be seen in the stool.
A persistent change in bowel habit - Ongoing diarrhoea, constipation or a change in stool pattern may require assessment.
Unexplained Iron-deficiency anaemia - Chronic gastrointestinal blood loss is one possible cause.
Persistent lower abdominal symptoms - FIT may form one part of an appropriate investigation.
Unexplained weight loss alongside bowel symptoms - This requires medical assessment rather than relying on FIT alone.
Family or clinical risk factors for bowel cancer - Screening requirements should be discussed with a healthcare professional.
A clinician has requested FIT before deciding on further bowel investigation - Quantitative FIT can support referral decisions.
Visible blood in the stool, persistent unexplained weight loss, significant abdominal symptoms, severe anaemia or a substantial ongoing change in bowel habit should be medically assessed.
A self-collected FIT result should not delay urgent or specialist evaluation when concerning symptoms are present.
How to Book Your Faecal Immunochemical Test Test
The Faecal Immunochemical Test is supplied as a convenient self-collection stool kit.
Choose the Faecal Immunochemical Test
Order the £68 FIT kit.
Receive your sample collection kit
The appropriate stool-sampling device and instructions are sent to you.
Collect your sample
Follow the kit instructions to obtain the required stool specimen.
Laboratory analysis
The sample is analysed quantitatively for human faecal haemoglobin.
Receive your results securely
Your completed FIT laboratory result is returned securely.
When Will I Receive My Results?
Results are generally expected within approximately 1-day turnaround once the FIT specimen has been received and entered into laboratory processing.
This laboratory turnaround does not include delivery of the physical collection kit.
Kit delivery can take up to approximately one week.
Understanding Your Results
A lower or undetectable FIT result means little or no human haemoglobin was detected according to the assay.
This is reassuring but does not completely exclude significant bowel disease.
A raised FIT result indicates that measurable human blood is present in the stool.
FIT cannot determine where the bleeding came from or identify its cause.
Depending on the result, symptoms, age and wider clinical risk, further assessment may include GP review, specialist referral or colonoscopy.
Why Book With London Blood Tests?
London Blood Tests provides a simple self-collection quantitative FIT pathway for bowel-health assessment.
Non-invasive stool testing - No venous blood draw or invasive procedure is required.
Detects microscopic human blood - FIT is designed specifically to measure human haemoglobin within stool.
Convenient self-collection - The sample can be collected privately using the supplied kit; this is not a phlebotomy visit.
Useful within bowel-screening pathways - FIT is widely used when assessing occult gastrointestinal bleeding.
Fast laboratory analysis - Results are generally expected within approximately one day after laboratory receipt.
Clear limitations - A positive FIT is not presented as a cancer diagnosis and a negative FIT does not exclude every bowel condition.
Clear pricing - The Faecal Immunochemical Test kit costs £68.
Private Faecal Immunochemical Test in London
London Blood Tests provides the Faecal Immunochemical Test for £68.
The stool test measures microscopic human haemoglobin.
The laboratory analytical turnaround is approximately one day after the specimen reaches the laboratory.
Collection timing is separate from the laboratory turnaround.