Private Flexible Sigmoidoscopy in Central London
At LSDC Healthcare, we offer fast access to private flexible sigmoidoscopy in Central London, performed exclusively by consultant gastroenterologists.
Located just two minutes from Liverpool Street Station, our modern clinic provides patients with a discreet, convenient location for rapid investigation of rectal bleeding, bowel changes, and colorectal screening.
What Is Flexible Sigmoidoscopy?
Flexible sigmoidoscopy is an endoscopic test that examines the rectum and lower part of the colon (sigmoid colon) using a thin, flexible camera.
It is less invasive and requires less preparation than a full colonoscopy, while still detecting important conditions such as polyps, inflammation, or early bowel cancer.
If needed, biopsies or polyp removal can be performed during the same test.
Who Might Need a Flexible Sigmoidoscopy?
Your consultant may recommend this procedure if you have:
Rectal bleeding (fresh blood in stool)
Persistent diarrhoea or constipation
Change in bowel habits
Lower abdominal pain or discomfort
Family history of bowel cancer
As part of bowel cancer screening
What Conditions Can a Flexible Sigmoidoscopy Detect?
Bowel cancer (lower colon and rectum)
Polyps (which can be removed during the test)
Ulcerative colitis and Crohn’s disease (lower bowel)
Diverticular disease
Causes of rectal bleeding such as haemorrhoids or fissures
What Happens During a Flexible Sigmoidoscopy?
Preparation:
Usually a single enema is given before the procedure — no full bowel prep is required.
Most patients can eat normally the day before.
Procedure:
Performed under light sedation or no sedation, depending on preference.
A flexible camera is gently passed into the rectum and sigmoid colon.
The procedure usually takes 10–20 minutes.
Biopsies or polyp removal may be performed if required.
Recovery:
Most patients leave the clinic the same day without restrictions.
If sedation is used, you will need an escort home and must not drive for 24 hours.
Consultant Expertise at LSDC Healthcare
All flexible sigmoidoscopies at LSDC are performed by consultant gastroenterologists with expertise in early bowel cancer detection, therapeutic endoscopy, and inflammatory bowel disease.
Our team ensures every patient receives a clear explanation of findings, same-day preliminary results, and rapid access to further investigations or treatment if needed.
Why Choose LSDC for Flexible Sigmoidoscopy?
Consultant-led procedures only — every procedure performed by senior gastroenterologists
State-of-the-art scopes for high-definition imaging
Polyp removal during the same test
Fast access — often available within days
Central London location near Liverpool Street Station
Insurance recognised — Bupa, AXA, Aviva, Cigna, Vitality, Healix
Transparent self-pay packages available
Private Fees and Insurance
We offer transparent self‑pay packages for private gastroscopy, colonoscopy and advanced endoscopic procedures, and we’re recognised by Bupa, AXA, Aviva, Cigna, Healix and other major insurers.Â
Our team will assist with pre‑authorisation and claims to make the process straightforward.
LSDC Healthcare
A couple of minutes outside Liverpool St Station, this excellent facility is conveniently located for Medical consultations in London.
This facility is open during the evenings making it an excellent choice for busy professionals.

Book A Consultation
If you’ve been advised to undergo a gastroscopy, colonoscopy, or would like a second opinion, we invite you to book a consultation with one of our specialists.
Our team will review your symptoms, medical history, and determine the most appropriate diagnostic pathway for you.
Frequently Asked Questions — Flexible Sigmoidoscopy
What is a flexible sigmoidoscopy?
A test using a flexible camera to examine the rectum and lower colon (sigmoid colon) for causes of bleeding, bowel changes, or screening.
How do I prepare?
Preparation is simple — usually just a single enema on the day. No full bowel prep is required for most patients.
Is it painful?
No. Most patients tolerate it well with little or no sedation. You may feel mild bloating or cramping, which settles quickly.
How long does the test take?
Usually 10–20 minutes. You may leave the clinic the same day.
What if a polyp is found?
Polyps can usually be removed immediately (polypectomy) and sent for laboratory analysis.
What are the risks?
Risks are very low. They include minor bleeding, discomfort, or very rarely perforation. Your consultant will explain these before the test.
Is flexible sigmoidoscopy covered by insurance?
Yes. LSDC is recognised by Bupa, AXA, Aviva, Cigna, Vitality, Healix, and most major insurers.