What Is an Ostomy?
An ostomy is a surgical procedure that creates an opening (stoma) in the abdominal wall to divert the flow of waste (faeces or urine) when the normal pathway is disrupted due to disease, injury or surgery. The stoma connects a portion of the intestine or urinary tract to the skin surface, where a pouching system collects the output.
Types of Ostomy
Colostomy: The colon is brought to the skin surface. Most commonly performed for rectal cancer, diverticular complications or bowel obstruction. Can be temporary or permanent. Ileostomy: The small intestine (ileum) is diverted. Used after total colectomy for inflammatory bowel disease, familial polyposis or rectal cancer. Output is liquid. Urostomy (ileal conduit): A segment of small intestine is used to divert urine after total cystectomy (removal of the bladder). Continuous urine output.
Daily Life with an Ostomy
Pouching systems: One-piece or two-piece systems are available. Pouches are odour-resistant and discreet under clothing. Diet: Most ostomy patients can eat a normal diet after recovery. Some foods affect output consistency or cause gas. Dietitian guidance helps. Physical activity: Most physical activities including swimming, gym and sport are possible with appropriate stoma care. Travel: Possible with planning. Carry extra supplies, prescription letter for airport security. Relationships and intimacy: Return to normal intimate life is possible. Stoma nurses provide counselling and practical advice.
Stoma Complications
Skin irritation around the stoma, hernia around the stoma (parastomal hernia), retraction or prolapse of the stoma, and stenosis (narrowing). Regular review by a specialist stoma nurse minimises these complications.
Temporary vs Permanent Ostomies
Many ostomies created for rectal cancer surgery are temporary (protecting a bowel anastomosis) and can be reversed after 3–6 months. Permanent ostomies may be unavoidable when the anal sphincter must be removed (abdominoperineal resection for very low rectal cancer).
Can a Permanent Ostomy Be Avoided?
This is the question patients ask most, and the answer depends less on the tumour than on who operates and how. Many ostomies presented as definitive are not necessarily so.
Low rectal cancer: sphincter-preserving surgery allows bowel continuity to be restored in a significant proportion of tumours located 5 to 8 cm from the anal verge, provided adequate oncological margins are achieved. It requires a surgeon with high volume in rectal cancer and, frequently, a robotic approach to work within the narrow pelvis.
Obstruction caused by tumour: an emergency ostomy is usually temporary. Once the obstruction is resolved and treatment completed, reconstruction should be reconsidered.
Extensive pelvic surgery: even in pelvic exenteration, the decision on permanent diversion is made case by case, not by protocol.
If you have been told you need a permanent colostomy and no one has explained why the alternative does not apply to you, that is a reasonable ground to seek a second surgical opinion before proceeding.
Ostomy Reversal: When Is It Possible?
A protective ileostomy after rectal surgery is temporary by definition. It is usually reversed 2 to 6 months later, once anastomotic integrity has been confirmed and adjuvant chemotherapy, if indicated, has been completed.
Conditions that must be met to restore bowel continuity:
• An intact anastomosis with no leak, confirmed by imaging
• A functional anal sphincter
• No tumour recurrence
• Nutritional and general status adequate for a second procedure
When an ostomy has been in place for years, reversal remains technically possible in selected cases, but it becomes complex surgery that should be assessed by a team experienced in salvage surgery.
Have you been told you need a permanent ostomy? Before accepting it, it is worth confirming whether preservation is an option or whether the diversion could be reversed later. Our team assesses these cases and tells you frankly what is possible in yours. Request an assessment.