Gastroenterology · UK
Flexible sigmoidoscopy - the left-sided colon look - quick, targeted and enema-prepped.
A limited endoscopy of the rectum and left colon. Enema prep only, sedation optional. Right for rectal bleeding when the source is likely distal.
Indicative pricing
What private flexible sigmoidoscopy costs in the UK.
Indicative ranges across our partner units.
In short
£700–£1,200, results in 2 weeks histology.
| Procedure | Indicative range | Typical duration | Turnaround |
|---|---|---|---|
| Flexible sigmoidoscopy | £700–£1,200 | 10–20 min | 2 weeks histology |
| Consultant consultation | £200–£400 | 30–45 min | Same visit |
| Pre-procedure bloods | £80–£220 | 5 min blood draw | 24–72 hours |
| Follow-up review | £150–£300 | 20–30 min | Same visit |
Prices vary by hospital, by consultant and by the complexity of your case.
The problem
The right flexible sigmoidoscopy, at the right time - with the right consultant.
NHS pathways are excellent but capacity is stretched. Private care shortens the timeline and lets you choose the consultant.
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NHS waits are long
Median waits for elective work vary by region and specialty; private care shortens the timeline.
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The right consultant matters
Outcomes in gastroenterology track with volume and subspecialisation - not just hospital brand.
When it helps
When flexible sigmoidoscopy is the right step.
Situations where flexible sigmoidoscopy is a reasonable next step in the UK.
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Fresh rectal bleeding
When the source is likely distal.
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Proctitis follow-up
IBD activity assessment.
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Rectal polyp surveillance
Small distal polyps after resection.
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Post-radiotherapy assessment
Pelvic radiation proctopathy.
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Diverticular disease with bleeding
When a full colonoscopy is not indicated.
Procedure options
Options within flexible sigmoidoscopy.
Technique and delivery vary by consultant and case.
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Diagnostic flexi sig
Rectum to splenic flexure typically.
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With polypectomy
Small distal polyps removed at the same visit.
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Awake with enema prep
No sedation - same-day drive home.
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With conscious sedation
For anxious patients - 24-hour driving embargo.
Safety and recovery
What to expect afterwards - honestly.
The safety profile is well understood - the honest bits are here.
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Perforation (very rare)
Around 1 in 5,000 diagnostic.
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Bleeding after polypectomy
Rare and usually self-limiting.
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Prep is easier than colonoscopy
Two phosphate enemas at home.
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Discomfort with air insufflation
CO₂ insufflation reduces bloating.
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Missed proximal lesions
Does not view the right colon - full colonoscopy if concern.
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Not for acute severe colitis
A limited flexi sig may still be used with caution.
Reading your notes
Your report in four parts. Read the last one first.
Whichever centre performs the procedure, the report keeps to the same shape.
- 01 Header
Indication and consent
Why the procedure was done, what was consented and any relevant history.
- 02 Findings
What was seen or done
The technical detail - anatomy, samples, devices used, measurements.
- 03 Assessment
Consultant interpretation
What the findings mean in your clinical context.
- 04 Impression
Summary and next step
Read this first - the bottom line and recommended follow-up.
Recognised by major UK insurers
Usually covered by UK private medical insurance when there is a specialist referral and a clear clinical indication.
Frequently asked
Everything we get asked about flexible sigmoidoscopy.
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How much does private flexible sigmoidoscopy cost in the UK?
We share two or three options with cover checked.
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Is flexible sigmoidoscopy covered by UK private medical insurance?
Usually yes with a specialist referral and clear indication. Bupa, AXA, Vitality, Aviva, WPA and Cigna are the mainstream insurers we work with.
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How soon can I be booked?
Most patients are seen within a week; urgent cases the same week where clinically appropriate.
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Where is it performed?
In CQC-registered UK hospitals and clinics across London and the major cities.
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Will the NHS see the results?
The report goes to you and - with your consent - your NHS GP.
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Is there an NHS pathway for this?
Yes, but waits vary by region. Private care is an option when timing, choice of consultant or symptom burden makes waiting unattractive.
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