Colon & Rectal Cancer Surgery
Thorough Staging. Precise Surgery. Steady Recovery.
Blood in the stool or a lasting change in bowel habits is often blamed on piles, but it can be an early sign of colon or rectal cancer. When it is found in time, surgery to remove the affected part of the bowel with its lymph nodes is the main treatment.
About Colon & Rectal Cancer Surgery
For colon cancer, a hemicolectomy removes the part of the colon containing the tumour together with its blood supply and lymph nodes, and the bowel ends are joined again. For rectal cancer, an anterior resection removes the affected part of the rectum while keeping the anal sphincter wherever possible, so that you can pass stools normally.
Rectal cancer is often treated with chemotherapy and radiotherapy before surgery to shrink the tumour. A temporary ileostomy may be made to protect the new join, and is usually closed in a small second operation a few weeks later. Dr. Waliullah Siddiqui plans each case with the oncology team and performs many of these operations laparoscopically or robotically.
- Right & Left Hemicolectomy
- Anterior Resection for Rectal Cancer
- Laparoscopic & Robotic Surgery
- Sphincter-Saving Surgery
- Temporary Ileostomy & Ileostomy Closure
- Surgery for Bowel Blockage
Warning Signs of Colon & Rectal Cancer
See a specialist if any of these last more than 2–3 weeks — do not assume bleeding is only piles.
Blood in the Stool
Change in Bowel Habits
Unexplained Weight Loss
Anaemia and Tiredness
Bloating or Abdominal Pain
Feeling of Incomplete Emptying
Our Colon & Rectal Cancer Surgery Process
A patient-focused approach for the best outcomes.
Colonoscopy
Colonoscopy with biopsy to confirm the diagnosis.
Staging
CT scan, and MRI of the pelvis for rectal cancer, to plan treatment.
Treatment Plan
Surgery alone, or chemo-radiotherapy first, decided with oncologists.
Surgery
Hemicolectomy or anterior resection, often by keyhole or robotic surgery.
Recovery & Follow-up
Early walking, diet guidance and regular check-ups.
Why Choose Dr. Waliullah Siddiqui?
Expertise. Compassion. Better Outcomes.
Specialised Expertise
Focused experience in complex liver, pancreas, bile duct and transplant surgery.
Advanced Technology
Laparoscopic and robotic surgery with modern imaging and operating theatres.
Personalised Care
A treatment plan built around each patient’s condition, health and goals.
Safety-Focused Care
Careful patient selection and protocols aimed at the safest possible result.
Multidisciplinary Team
Hepatologists, anaesthetists, intensivists and nurses working as one team.
Post-Surgical Support
Structured follow-up and recovery guidance after you go home.
Frequently Asked Questions
Is blood in the stool always piles?
No. Piles are a common cause, but colon and rectal cancer can also cause bleeding. If bleeding continues, or comes with a change in bowel habits, weight loss or anaemia, a colonoscopy is advised.
Is colon cancer curable?
When colon or rectal cancer is found before it has spread to other organs, complete surgical removal — with chemotherapy where needed — offers the best chance of cure. Early colonoscopy makes a real difference.
Will I need a stoma (bag) after surgery?
Most colon cancer operations do not need a stoma. After rectal cancer surgery a temporary ileostomy is sometimes made to protect the join, and it is usually closed after a few weeks. A permanent stoma is needed only when the tumour is very close to the anal opening.
Can colorectal cancer surgery be done by keyhole or robotic surgery?
Yes, in many patients. Laparoscopic and robotic surgery allow the same cancer operation through small cuts, with less pain and a quicker return to normal activity. Robotic surgery is especially helpful in the narrow pelvis for rectal cancer.
How long is the hospital stay?
Most patients stay about 5–7 days. Walking starts the day after surgery and diet is restarted step by step.
Will I need chemotherapy or radiotherapy?
It depends on the stage. Rectal cancer often needs chemo-radiotherapy before surgery, and some colon cancers need chemotherapy after surgery. The oncology team decides this with your surgeon.
Other Treatments
Stomach Cancer Surgery
Gastrectomy for stomach (gastric) cancer, including laparoscopic and robotic gastrectomy.
Learn MoreGI Cancer Surgery
Advanced surgery for stomach, colon and rectal cancers.
Learn MoreLiver Transplant
Comprehensive care for liver failure and end-stage liver disease.
Learn MoreHPB Surgery
Advanced surgery for liver, pancreas and bile duct disorders.
Learn MoreTake the First Step Towards Better Health
Bleeding or a change in bowel habits? Get it checked early.