What is pouchitis?
Pouchitis happens when the lining of a surgically constructed pouch becomes inflamed or irritated. Doctors create this pouch, also called an ileal pouch or j pouch, during surgery to remove the colon and rectum as part of treatment for conditions like inflammatory bowel disease (IBD). The pouch is made from the end of the small intestine and connected to the anus. It acts as a new storage area for stool.
Gastroenterologists, doctors who specialize in digestive diseases, diagnose and treat pouchitis. At Penn Medicine, care is part of a comprehensive, specialized IBD care program, where dedicated experts use advanced testing and the latest treatments to create a plan that fits your needs.
Signs of an inflamed ileal pouch
If you have pouchitis, you might feel like your original bowel symptoms have returned. Symptoms of pouchitis can range from mild to severe and often include:
- Frequent bowel movements or diarrhea
- A strong, urgent need to have a bowel movement
- Belly or pelvic pain and cramping
- Trouble controlling stool, including leakage
- Feeling like you need to go but can’t
- Straining during bowel movements
- Blood in the stool
- Fever, chills, or joint pain
Why pouchitis happens
Pouchitis is a common complication after ileal pouch surgery. Experts believe the condition may be linked to changes in gut bacteria and how the immune system responds inside the pouch. After surgery, when the small intestine becomes a pouch, it’s exposed to new types of bacteria. The immune system may overreact and cause inflammation.
Several factors may increase the risk:
- A history of inflammatory bowel disease
- Changes in gut bacteria or infections
- Use of NSAID medications like ibuprofen or naproxen
- A weakened immune system
- Radiation therapy to the pelvic area
- Certain underlying conditions that affect inflammation
How pouchitis is diagnosed
Diagnosis starts with a review of your symptoms and a physical exam. Blood tests and stool tests can help rule out infection or other causes. Your provider may use an endoscope, a thin tube with a tiny camera, to look at the lining of your pouch. They may also take a small tissue sample (biopsy). Imaging studies provide detailed pictures of the structures around your pouch.
Pouchitis management options
Pouchitis treatment depends on your symptoms and how often they occur. Antibiotics are usually the first step and often work quickly to reduce inflammation and treat bacterial imbalance. Your care team may also recommend probiotics to help lower the risk of pouchitis coming back.
If symptoms don’t improve or keep returning, anti-inflammatory medications, targeted steroids, or immune-based therapies like biologics may help. These options are often used for more complex or long-lasting pouchitis.
How to lower your risk
Pouchitis can’t always be prevented, but you can take steps to help lower the risk. These include avoiding medications that irritate the gut, limiting alcohol and tobacco, and following a diet that supports digestive health. Probiotics may help reduce the chance of pouchitis returning for some people. Your care team can guide you on what may work best for you.
A team approach to pouchitis care
At Penn Medicine, care for pouchitis is part of a specialized IBD care program. You’ll have access to a team that includes gastroenterologists, colorectal surgeons, radiologists, and other specialists who work together in one place. This coordinated approach helps streamline diagnosis, treatment, and follow-up.
Care is guided by the latest research and diagnostic tools like advanced endoscopy for gastrointestinal interventions. With a focus on tailored treatment and long-term pouchitis management, the goal is to help you feel better, reduce flare-ups, and get back to daily life with confidence.