Mallory-Weiss tear

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Last reviewed: 11 Apr 2025
Last updated: 21 Jun 2023

Summary

Definition

History and exam

Key diagnostic factors

  • presence of risk factors
  • haematemesis
Full details

Other diagnostic factors

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

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
Full details

Diagnostic investigations

1st investigations to order

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

Investigations to consider

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

Treatment algorithm

ACUTE

active non-variceal bleeding

Contributors

Expert advisers

Neeraj Bhala, DPhil(Oxon), FRACP, FRCPE

Consultant Gastroenterologist

Site Lead of Gastrointestinal Medicine

Queen Elizabeth Hospital Birmingham

University Hospitals Birmingham

Edgbaston

Birmingham

UK

Disclosures

NB declares that he has no competing interests.

Acknowledgements

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

Douglas G. Alder, MD, FACG, AGAF, FASGE

Professor of Medicine

Division of Gastroenterology

Department of Internal Medicine

Huntsman Cancer Institute

University of Utah

Salt Lake City

UT

Disclosures

DGA has consulted for Boston Scientific and Merit Medical, which make endoscopic retrograde cholangiopancreatography products.

Peer reviewers

Ian Beales, BSc, FEBG, MD, MRCP

Consultant Gastroenterologist

Clinical Associate Professor

Norwich Medical School

Department of Gastroenterology

Norfolk and Norwich University Hospital

Norwich

Norfolk

UK

Disclosures

IB declares that he has no competing interests.

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 to users with access to all of BMJ Best Practice.
  • Mallory-Weiss tear images
  • Differentials

    • Oesophagitis
    • Spontaneous oesophageal perforation (Boerhaave's syndrome)
    • Cameron erosions
    More Differentials
  • Guidelines

    • British Society of Gastroenterology (BSG)-led multisociety consensus care bundle for the early clinical management of acute upper gastrointestinal bleeding
    • Acute upper gastrointestinal bleeding in over 16s: management
    More Guidelines
  • Calculators

    Blatchford Score for Gastrointestinal Bleeding

    Rockall Score for Upper Gastrointestinal Bleeding

    More Calculators
  • Patient information

    Bulimia: what is it?

    Bulimia: what treatments work?

    More Patient information
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