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Prof. Charles Henry Knowles

MA, PhD, FRCS, FACCRS (Hon)

General Surgeon

Live bookings available

34 years of experience

Belgravia, SW1X 7HY

(+2 more)

36 connections in healthcare

Skill endorsed

by Mr Joseph Shalhoub, Mr Christopher Wright and 13 other professionals

5

/5

(22 reviews)

Live bookings available

34 years of experience

Belgravia, SW1X 7HY

(+2 more)

36 connections in healthcare

Skill endorsed

by Mr Joseph Shalhoub, Mr Christopher Wright and 13 other professionals

Areas of expertise

All
Reviews
Skill Endorsements
Anal Prolapse
11
2
Colorectal Surgery
6
Constipation
5
3

Contact

Book online


Expert in:

About Prof. Charles Henry Knowles

Charles Knowles is the Lead for Colorectal Surgery at Cleveland Clinic London and Professor of Surgery at Queen Mary University of London. He has been a Consultant Colorectal surgeon at Barts Health NHS Trust since 2006, after completing his studies at Cambridge University in 1992. He is highly regarded as an international opinion leader on pelvic floor disorders, proctology and GI neuromuscular diseases, including common colorectal conditions such as chronic constipation, faecal incontinence, haemorrhoids, fissure and fistula. His impressive record of delivering quality research and shaping clinical practice is evidenced by his multiple national and international leadership roles, including becoming the inaugural Chief Academic Officer at CCL. He has published extensively in scientific journals (> 300 peer-reviewed papers) and major textbooks. He is also a semi-professional musician and internationally published author. 


Subspecialties

  • Colorectal Surgery

Areas of expertise

All
Reviews
(31)
Skill Endorsements
(35)

Click the bar to read reviews or skill endorsements

Anal Prolapse
11
2
Colorectal Surgery
6
Constipation
5
3
Faecal Incontinence
4
1
Anal Fissure
2
Anorectal Conditions
2
Anal Fistula
1
1
Bowel Surgery (Colectomy)
1
Pilonidal Sinus Disorders
1
Enterocele
1
Chronic Pelvic Pain
1
Bowel Obstruction
1
Haemorrhoidectomy
1
Pilonidal Sinus Excision
7
Stoma Reversal
7
Pelvic Floor Surgery
2
Male and Female Incontinence
2
Sports Injuries
1
Exercise Testing
1
Stomach / Abdominal Pain
1
Haemorrhoids
1
Breast Uplift Surgery (Mastopexy)
1
Irritable Bowel Syndrome (IBS)
1
Scar Revision Surgery
1
Anal Cancer
1
Femoral Hernia
1
Inflammatory Bowel Disease (IBD)
1
Abscess Incision and Drainage
Banding of Haemorrhoids
Umbilical (Belly-Button) Hernia
Umbilical Hernia Repair
Perianal Disease
Stoma Surgery
Rectal Biopsy
Fistulectomy and Seton Insertion
Perianal Abscess
Botox Injections for Anal Fissure
Crohn's Disease
Diverticulitis
Video Consultation
Colitis (Ulcerative Colitis)
Colostomy Surgery
Blood in Stool / Rectal Bleeding (Haematochezia)
Bowel Diversion Surgery
Ileostomy Surgery
Removal of Rectum and Colon (Proctocolectomy)

Registered with

General Medical Council

No. 3585528


Education

University of Cambridge

Medicine

Graduated 1992

University of London

Medicine and surgery

Graduated 2000


Qualifications

  • BChir 1992 University of Cambridge
  • MB 1993 University of Cambridge
  • FRCS 1996 Royal College of Surgeons of England
  • PhD 2000 University of London
  • FRCS (Gen Surg) Intercollegiate Royal College Specialty Boards

Languages spoken

  • English

Insurers

  • Bupa
  • Cigna
  • Aviva Health
  • Vitality
  • AXA Health
  • Allianz Worldwide Care

Fees

  • New appointment

    £275
  • Follow-up appointment

    £210
*May vary on location

Locations

Cleveland Clinic London

Cleveland Clinic London, 33 Grosvenor Place, Belgravia, United Kingdom, SW1X 7HY

4.84(3,320 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Paid Parking
View practice profile

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Paid Parking
View practice profile

Cleveland Clinic Portland Place Outpatient Centre

Cleveland Clinic Portland Place Outpatient Centre, 24 Portland Place,, London, United Kingdom, W1B 1LU

4.85(2,239 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Cleveland Clinic Moorgate Outpatient Centre

Cleveland Clinic Moorgate Outpatient Centre, 55 Moorgate, London, United Kingdom, EC2R 6BH

4.86(742 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Areas of expertise

All
Reviews
Skill Endorsements
Anal Prolapse
11
2
Colorectal Surgery
6
Constipation
5
3

Contact

Book online

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Prof. Charles Henry Knowles is knowledgeable, understanding, and friendly in his interactions with patients. Patients report he listens carefully, acts promptly, and provides clear explanations regarding complex medical histories and treatment plans. Many patients express a high level of trust and security in his care, often wishing they had consulted him earlier for gastrointestinal issues. His expertise covers conditions such as anal prolapse, colorectal surgery, constipation, and faecal incontinence.

5
verified patient
06 Aug 2026

⭐⭐⭐⭐⭐ I can’t recommend Professor Charles Knowles highly enough. From the moment I met him, I felt listened to, understood, and genuinely cared for. I’ve been struggling with ongoing pain for a long time and, for the first time, I left an appointment feeling like someone truly understood what was going on. Professor Knowles explained everything so clearly, gave me confidence in the treatment plan, and referred me to a specialist physiotherapist who is exactly the right fit for my condition. We also discussed surgery for my pilonidal sinus, and he completely put my mind at ease. His calm, reassuring manner and obvious expertise made what had felt overwhelming seem much more manageable. I walked out of the appointment feeling genuinely hopeful, which is something I haven’t felt in a long time. Professor Knowles is an exceptional doctor, and I’m incredibly grateful for his care. Thank you

5
verified patient
26 Jul 2026

Prof Knowles, was very experienced and listen to my explanation and suggested treatment strategy. it was great.

5
verified patient
24 Jun 2026

Prof Knowles is a true professional and I feel complete trust and safety in his care. His listens well and acts promptly. I truly wish Prof Knowles had been part of my gastro health journey from the start - I wonder how much better I would have been a lot sooner. I am very thankful for his care, attention and acting so fast to get to some kind of solution.

5
verified patient
12 Jun 2026

Professor Knowles is incredible and I highly recommend him. His listens very carefully and I feel totally safe, secure and looked after in his care. He takes prompt action to start the healing process, whilst being open and honest with long term outcomes and options. I honestly wish I had been under his care since the beginning of my gastro journey - I fully trust and respect his experience, knowledge and understanding of my symptoms, journey and solutions.

5
verified patient
19 May 2026

He saved my life. Exceptional doctor. Worth every penny. 38 years of unexplained agony every day finally explained

Patient seen for:
5
verified patient
17 Apr 2026

Professor Knowles understood my problem well and gave excellent advice

Patient seen for:
Reply from Charles Henry Knowles
23 Apr 2026
avatar-image

Thank you for your kind review CK

5
verified patient
21 Feb 2026

Very helpful and professional

Reply from Charles Henry Knowles
05 Mar 2026
avatar-image

Thanks you very much for your generous review

5
verified patient
16 Jan 2026

Professor Knowles was very kind and made everything very clear

Reply from Charles Henry Knowles
23 Apr 2026
avatar-image

Thank you - glad to have been of help. CK

5
verified patient
10 Jan 2026

Very knowledgeable and understanding.

Patient seen for:
Reply from Charles Henry Knowles
05 Mar 2026
avatar-image

Thanks very much for your positive review

5
verified patient
08 Jan 2026

I was both delighted and motivated by Pro Knowles approach and knowledge. He identified issue I felt I had but could not quantify. Would recommend him to othered without question.

Patient seen for:
Reply from Charles Henry Knowles
05 Mar 2026
avatar-image

Thanks very much for your very supportive review

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Skill Endorsements

16 Jul 2025
Endorsed for
Stoma Reversal
Pilonidal Sinus Excision

Mr Joseph Shalhoub

Mr Joseph Shalhoub

General Surgeon
Is a colleague

Prof Knowles always provides a comprehensive and measured opinion on very complex cases and is extremely personable and approachable as well.

06 Jun 2025
Endorsed for
Constipation
Male and Female Incontinence
Anal Prolapse

MW

Mr Christopher Wright

General Surgeon
I have looked after their patients

Professor Knowles is a world renowned international expert for functional bowel disorders

06 Jun 2025
Endorsed for
Constipation
Male and Female Incontinence
Pelvic Floor Surgery

Mr Chetan Bhan

Mr Chetan Bhan

General Surgeon
I have referred patients to them

An expert in his field and pleasure to work with

06 Nov 2024
Endorsed for
Stoma Reversal
Pilonidal Sinus Excision

Professor Alister Hart

Professor Alister Hart

Orthopaedic Surgeon
Is a colleague

FAQ

What are Prof. Charles Henry Knowles's reviews like?

Prof. Charles Henry Knowles's overall patient rating is 5 out of 5 stars on Doctify. This is based on 22 reviews.

What languages does Prof. Charles Henry Knowles speak?

Prof. Charles Henry Knowles speaks English

Where is Prof. Charles Henry Knowles located?

Prof. Charles Henry Knowles primarily practices at Cleveland Clinic London, located at Cleveland Clinic London, 33 Grosvenor Place, Belgravia, United Kingdom, SW1X 7HY
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Does Prof. Charles Henry Knowles accept new patients?

Prof. Charles Henry Knowles generally accepts new patients.

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