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Updated: Aug 29, 2026

Chinese Herbal Retention Enema for the Treatment of Ulcerative Colitis
Published on: May 16, 2025
Waiting-list induced proctitis: the hydrogen peroxide enema
1Dept of Medicine, Foothills Medical Centre, University of Calgary, Calgary, Alberta, Canada. driangan@hotmail.com
Abstract:
Hydrogen peroxide is a widely available disinfectant that has been reported to cause colitis. We report a case of a 67-year-old man who presented with an acute proctitis caused by a self-inflicted 3% hydrogen peroxide enema. The patient's intention was to cure himself of a recently diagnosed prostate cancer, because the waiting list for oncological consultation was deemed too long. The pathogenesis of hydrogen peroxide mucosal injury and a review of the literature is discussed.
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