colitis is an inflammation of the colon due to toxins produced by a gram-positive bacterium called (also known as ). colitis is associated with an increased risk of morbidity and mortality in elderly patients. The infection develops because of the disruption of the microbiome that usually suppresses the overgrowth of . Testing for infection is routinely recommended in patients with at least three loose bowel movements in a day. We present an unusual case of a 74-year-old woman on chronic opioids who presented with a three-day history of lower abdominal pain, constipation, hematochezia, with no diarrhea. Radiologic imaging showed evidence of colitis, and the patient was found to have colitis.