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The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
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Updated: Feb 15, 2026

Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection
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Colonoscopy-induced acute diverticulitis: myth or reality?

Emre Gorgun1, Ozgen Isik2, Ipek Sapci2

  • 1Department of Colorectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH, 44195, USA. gorgune@ccf.org.

Surgical Endoscopy
|January 19, 2018
PubMed
Summary

Post-colonoscopy diverticulitis is a rare complication, occurring in 0.029% of procedures. Patients with a history of diverticulitis and those undergoing colonoscopy soon after an attack face higher risks.

Keywords:
ColonoscopyColonoscopy complicationDiverticulitis

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Area of Science:

  • Gastroenterology
  • Colorectal Surgery
  • Medical Complications

Background:

  • Colonoscopy in patients with diverticulosis presents technical challenges.
  • Limited data exist on the risk of acute diverticulitis following colonoscopy.
  • Post-colonoscopy diverticulitis is a rare but potentially serious complication.

Purpose of the Study:

  • To evaluate the incidence of acute diverticulitis after colonoscopy.
  • To assess the management strategies for post-colonoscopy diverticulitis.
  • To determine the outcomes associated with this complication.

Main Methods:

  • Retrospective cohort study design.
  • Electronic patient database search (2003-2012) using procedural and diagnostic codes.
  • Review of patients who developed acute diverticulitis within 30 days post-colonoscopy.

Main Results:

  • 68 cases of post-colonoscopy diverticulitis occurred (0.029% incidence).
  • Incomplete colonoscopies were more frequent in patients with prior diverticulitis.
  • Surgical intervention was more common when colonoscopy followed an acute attack within 6 weeks.

Conclusions:

  • Post-colonoscopy diverticulitis is a rare complication.
  • Awareness is crucial for patients presenting with symptoms post-colonoscopy.
  • Risk factors include prior diverticulitis history and timing of colonoscopy relative to acute attacks.