Evaluation of lower gastrointestinal bleeding

Last reviewed: 8 Apr 2025
Last updated: 09 Jul 2024

Summary

Differentials

Common

  • Diverticular disease
  • Colonic angiodysplasia
  • Ischemic colitis
  • Crohn disease
  • Ulcerative colitis
  • Infectious colitis
  • Colorectal cancer
  • Internal hemorrhoids
  • Anal fissure
  • Colonic polyps
Full details

Uncommon

  • Meckel diverticulum
  • Radiation-induced telangiectasia
  • Dieulafoy lesion
  • Aortoenteric fistula
  • Vasculitis
  • Hereditary hemorrhagic telangiectasia
  • Blue rubber bleb nevus syndrome
  • Anal cancer
  • Rectal ulcer
  • Rectal varices
  • Postpolypectomy bleeding
  • Nonsteroidal anti-inflammatory drug (NSAID) colopathy
  • Upper GI bleeding (rapid transport)
  • Prostate biopsy site bleeding
  • Endometriosis
Full details

Contributors

Authors

Praveen Roy, MD

Clinical Assistant, Professor of Medicine

University of New Mexico

NM

Disclosures

PR declares that he has no competing interests.

Peer reviewers

Ian Jenkins, MB BS

Specialist Registrar

Division of Surgery

North Glasgow University Hospitals NHS Trust

Glasgow

UK

Disclosures

IJ declares that he has no competing interests.

References

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Key articles

Sengupta N, Feuerstein JD, Jairath V, et al. Management of patients with acute lower gastrointestinal bleeding: an updated ACG guideline. Am J Gastroenterol. 2023 Feb 1;118(2):208-31.Full text  Abstract

Oakland K, Chadwick G, East JE, et al. Diagnosis and management of acute lower gastrointestinal bleeding: guidelines from the British Society of Gastroenterology. Gut. 2019 May;68(5):776-89.Full text  Abstract

Expert Panel on Interventional Radiology; Karuppasamy K, Kapoor BS, Fidelman N, et al. ACR Appropriateness Criteria® Radiologic management of lower gastrointestinal tract bleeding: 2021 update. Am Coll Radiol. 2021 May;18(5S):S139-52.Full text  Abstract

Pasha SF, Shergill A, Acosta RD, et al; ASGE Standards of Practice Committee. The role of endoscopy in the patient with lower GI bleeding. Gastrointest Endosc. 2014 Jun;79(6):875-85.Full text  Abstract

Reference articles

A full list of sources referenced in this topic is available to users with access to all of BMJ Best Practice.

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