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Last reviewed: 20 Sep 2025
Last updated: 08 Jul 2025

Summary

Definition

History and exam

Key diagnostic factors

  • presence of risk factors
  • haematemesis

Other diagnostic factors

  • light-headedness/dizziness
  • postural/orthostatic hypotension
  • dysphagia or odynophagia
  • retrosternal, epigastric, or back pain
  • melaena
  • haematochezia
  • shock
  • signs of anaemia

Risk factors

  • condition predisposing to retching, vomiting, and/or straining
  • chronic cough
  • hiatal hernia
  • endoscopy or other instrumentation
  • heavy alcohol use
  • age 30 to 50 years
  • male sex
  • hiccups
  • blunt abdominal trauma
  • cardiopulmonary resuscitation

Diagnostic investigations

1st investigations to order

  • gastroscopy
  • full blood count
  • urea and creatinine
  • liver function tests
  • cross-matching/blood grouping

Investigations to consider

  • prothrombin time/international normalised ratio (PT/INR)
  • activated partial thromboplastin time (PTT)
  • chest and abdominal CT
  • chest x-ray
  • CT angiogram

Treatment algorithm

Contributors

Expert advisers

Ian Beales, BSc, FEBG, MD, MRCP

Consultant Gastroenterologist

Department of Gastroenterology

Norfolk and Norwich University Hospital

Norwich

UK

Disclosures

IB declares that he has no competing interests.

Acknowledgements

BMJ Best Practice would like to gratefully acknowledge the previous expert contributor, whose work is retained in parts of the content:

Neeraj Bhala DPhil(Oxon), FRACP, FRCPE

Consultant Gastroenterologist

Site Lead of Gastrointestinal Medicine

Queen Elizabeth Hospital

University Hospitals Birmingham

Birmingham

UK

Disclosures

NB declares that he has no competing interests.

Peer reviewers

Adrian Stanley, MBChB, MD, FRCPEd, FRCPSGlasg

Honorary Professor

Consultant Gastroenterologist

NHS Greater Glasgow and Clyde

Glasgow

UK

Disclosures

AS declares that he has no competing interests.

Peer reviewer acknowledgements

BMJ Best Practice topics are updated on a rolling basis in line with developments in evidence and guidance. The peer reviewers listed here have reviewed the content at least once during the history of the topic.

Disclosures

Peer reviewer affiliations and disclosures pertain to the time of the review.

References

Our in-house evidence and editorial teams collaborate with international expert contributors and peer reviewers to ensure that we provide access to the most clinically relevant information possible.

Key articles

Siau K, Hearnshaw S, Stanley AJ, et al. British Society of Gastroenterology (BSG)-led multisociety consensus care bundle for the early clinical management of acute upper gastrointestinal bleeding. Frontline Gastroenterol. 2020 Mar 27;11(4):311-23.Full text  Abstract

Gralnek IM, Stanley AJ, Morris AJ, et al. Endoscopic diagnosis and management of nonvariceal upper gastrointestinal hemorrhage (NVUGIH): European Society of Gastrointestinal Endoscopy (ESGE) guideline - update 2021. Endoscopy. 2021 Mar;53(3):300-32.Full text  Abstract

National Institute for Health and Care Excellence. Acute upper gastrointestinal bleeding in over 16s: management. August 2016 [internet publication].Full text

Reference articles

A full list of sources referenced in this topic is available here.

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