Pouchitis after ulcerative colitis surgery
Content date: 14 November 2026
Bowel frequency can be higher after pouch surgery, but a change from your usual pattern, pain or bleeding needs assessment before assuming pouchitis.
Your next step
Record your usual pattern, when it changed and previous treatment.
Get urgent help: Severe pain with swelling or vomiting, fever with deterioration, major bleeding or severe dehydration: emergency care.
What is a pouch and pouchitis?
- After removal of the colon and rectum, surgeons may form an internal pouch from small bowel and connect it to the anus, often a J-pouch. Pouchitis is inflammation of its lining; it is distinct from an external stoma.
How might symptoms change?
- Know your usual bowel pattern, including night-time frequency. A sustained increase, new urgency or leakage, cramps, pelvic pain or bleeding warrants assessment. Symptoms alone do not identify the cause.
How is it assessed?
- The team may test stool for infection and perform pouchoscopy with biopsies, particularly for recurrent or treatment-resistant symptoms. Other causes include inflammation of the residual cuff, narrowing, evacuation problems or Crohn’s-like disease of the pouch.
Treatment and follow-up
- Confirmed episodes may be treated with a clinician-selected antibiotic. Rapid recurrence or poor response needs reassessment and sometimes longer treatment or specialist immune therapy; do not repeat old prescriptions yourself.
- A specific probiotic formulation may be considered to prevent recurrence in selected antibiotic responders, but products are not interchangeable and evidence is limited. It does not replace treatment of an active episode. Maintain nutrition, appropriate hydration and follow-up.
When to get help
Severe pain with swelling or vomiting, fever with deterioration, major bleeding or severe dehydration: emergency care.
Persistent change from your usual pattern, new bleeding/leakage or symptoms returning after treatment.