How effective is tumour removal surgery for anal cancer?

The operation may remove a small, accessible tumour or may be considered when cancer remains after other treatment. The surgeon assesses the tumour’s depth, position and relationship to the anal sphincter and nearby tissues. The aim is to remove the cancer safely while considering bowel control, healing and day-to-day function.

The treatment plan is individual. Some people need an operation as the main local treatment, while others may be offered medicines or radiotherapy first. If a larger operation is needed, the team will explain how bowel movements may change and whether a stoma is possible. Examination and imaging after treatment help guide the next step.

Ask your surgeon to show you where the tumour is and describe the proposed operation in plain language. Discuss whether other treatment is recommended before surgery, how bowel function may be affected, wound care, pain control and time away from normal activities. Tell the team about constipation, diarrhoea, bleeding, pain or problems controlling stool so these can be managed during planning.

After surgery, contact the team for fever, increasing wound pain, redness, pus, persistent vomiting, inability to pass urine or stool, or bleeding that is more than expected. Seek emergency care for severe abdominal pain, collapse, heavy bleeding or sudden breathing difficulty.

What is the purpose of surgery in my treatment sequence? Will the operation affect the sphincter or bowel control? Is a stoma possible, and would it be temporary or ongoing? How will you check the result? Which bowel or wound symptoms need same-day advice?