Complications of surgery for ulcerative colitis

Surgeries to remove the colon and cure ulcerative colitis have potential complications. Complications after ileoanal anastomosis are more common than complications after proctocolectomy and ileostomy.

Ileoanal anastomosis

About one third of people who have this surgery eventually have one or more of the following:1

  • Blockage of the small intestine (small bowel obstruction)
  • Leakage of stool from the anus (incontinence)
  • Inflammation of the ileal pouch (pouchitis)
  • Pelvic or abdominal infection (sepsis)
  • Sexual difficulties

Proctocolectomy and ileostomy

The main complications after proctocolectomy and ileostomy include:1

  • Infection (also called sepsis).
  • Blockage of the small intestine (small bowel obstruction).
  • A problem with the opening in the stomach wall (the stoma). Some people need another surgery to repair the stoma.


Author: Monica RhodesLast Updated: November 14, 2006
Medical Review: Kathleen Romito, MD - Family Medicine
Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology

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