With 2 clinics located in Central London and 2 in North-West London, Dr Arun Rajendran takes pride in offering expert, friendly, and effective care for a comprehensive range of conditions affecting the gullet, stomach, colon, and liver.
mailgastro@pm.me
London clinic and Onewelbeck
BMI The Clementine Churchill Hospital
OSD Healthcare
Expert care for bowel cancer — from early diagnosis to advanced treatment — with personalised support throughout.
Clinics in and around London
Compassionate Specialist Care
Gastroenterology London
Bowel cancer — also known as colorectal cancer — develops in the large bowel, which includes the colon and rectum.
It is one of the most common cancers in the UK, often beginning as small, non-cancerous polyps that can develop into cancer over time.
When bowel cancer is caught early, it is highly treatable.
Facts: 4th most common cancer in the UK; Over 90% of cases occur in people aged 50 and over; Early-stage survival rate can be as high as 95%.
Bowel cancer typically develops through a combination of genetics, lifestyle, and diet.
A family history of bowel cancer increases your risk.
Most cases are diagnosed in people aged 50 and over.
A diet high in red or processed meat, smoking, excess alcohol, and physical inactivity all raise the risk.
Long-term Crohn’s disease or ulcerative colitis, as well as a family history of cancer or polyps and inherited genetic risk, elevate lifetime risk.
Early signs of bowel cancer can be subtle. Knowing what to look for means you can seek help sooner.
Persistent diarrhoea, constipation, or unusual stools lasting more than a few weeks.
Bright red or dark blood — always warrants specialist investigation.
Losing weight without trying, particularly alongside other bowel symptoms.
Ongoing cramping or bloating that does not resolve.
Persistent tiredness, often linked to anaemia from slow bowel bleeding.
A persistent sensation that the bowel has not fully emptied.
If you notice blood in your stools, a change in bowel habits lasting more than three weeks, unexplained weight loss, or persistent abdominal pain — do not wait.
Concerned about bowel cancer symptoms? An early consultation with Dr Arun Rajendran could make all the difference.
Dr Arun Rajendran uses the latest diagnostic tools to deliver accurate, timely results in a private setting.
A non-invasive test checking for hidden blood in the stool — often the earliest detectable sign.
A flexible camera examines the full bowel. Polyps can be removed during the same procedure.
A detailed CT scan producing a 3D image of the colon — useful where colonoscopy is not suitable.
Tissue samples confirm cancer; CT and MRI scans determine whether it has spread.
Treatment depends on the stage and your individual circumstances. Dr Rajendran works with a multidisciplinary team to deliver personalised, evidence-based care.
Removal of the cancerous bowel section; Keyhole surgery where possible; Polypectomy during colonoscopy for early-stage cancer.
Chemotherapy to destroy/shrink cancer cells; Radiotherapy targets cancer cells with precision; Targeted therapy and immunotherapy for advanced subtypes.
Nutritional support and pain management; Psychological counselling; Regular follow-up colonoscopies.
Simple everyday choices can meaningfully reduce your risk and support long-term bowel health.
Eat plenty of fibre; Limit red and processed meats; Stay well hydrated; A Mediterranean-style diet is associated with reduced risk.
Aim for 30 minutes of moderate activity; Maintain a healthy weight; Stop smoking and keep alcohol within recommended limits.
Take part in bowel cancer screening if you are over 50; Ask about earlier surveillance if you have a family history; Report any new symptoms promptly.
Expert, friendly, and effective private gastro care — because you deserve more than a rushed appointment.
Every plan is built around your specific diagnosis and lifestyle — not a generic protocol.
Every plan is built around your specific diagnosis and lifestyle — not a generic protocol.
Conveniently located across central and south London, often available within days.
Conveniently located across central and south London, often available within days.
Thousands of patients across London and the UK have trusted
Dr Arun Rajendran to get to the bottom of their digestive symptoms.
Dr. Arun Rajendran has been treating patients for over 10 years and prides himself on warm, friendly, and efficient gastroenterology care.
We are a self-pay clinic but also accept all major UK healthcare insurance providers.
Our London Clinic Locations
20 Devonshire Place, London, W1G 6BW (Wed: 17:45 – 19:30).
Welbeck Street, London, W1G 0AR (Mon: 18:00 – 20:00).
Sudbury Hill, Harrow, HA1 3RX
(Tue 18:00–20:00 · Alt Sat 08:30–10:30).
One Medical House, Hemel Hempstead, HP2 7YU
(Saturday: 09:00 – 11:00).
