What is the most common cause of upper Gastrointestinal (GI) bleeding: Esophageal varices, Gastritis, Mallory-Weiss tear, or Peptic Ulcer Disease (PUD)?

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From the Guidelines

Peptic ulcer disease is the most common cause of upper GI bleeding, accounting for approximately 50-70% of cases. This condition occurs when stomach acid erodes the lining of the stomach or duodenum, creating ulcers that can bleed when they damage underlying blood vessels. Peptic ulcers are significantly more common than esophageal varices (which are associated with portal hypertension, typically from liver disease), gastritis (inflammation of the stomach lining), or Mallory-Weiss tears (mucosal lacerations at the gastroesophageal junction often caused by forceful vomiting) 1. The bleeding from peptic ulcers can range from slow, chronic blood loss causing anemia to acute, massive hemorrhage requiring emergency intervention. Common risk factors for peptic ulcer disease include H. pylori infection, NSAID use, smoking, alcohol consumption, and stress. Management typically involves acid suppression with proton pump inhibitors, treating any underlying H. pylori infection, and addressing modifiable risk factors.

Some key points to consider in the management of upper GI bleeding include:

  • The incidence of nonvariceal UGIB is almost 5 times higher than that of variceal UGIB 1
  • Peptic ulcer disease caused by Helicobacter pylori infection or nonsteroidal anti-inflammatory drug use is the most common cause of non-variceal UGIB 1
  • Esophagogastroduodenoscopy is the usual first-line diagnostic and therapeutic investigation for upper GI bleeding 1
  • Video capsule endoscopy is also sometimes used, especially if the bleeding site is suspected to be below the ligament of Treitz 1

Overall, peptic ulcer disease is a significant cause of morbidity and mortality, and prompt recognition and treatment are essential to improve outcomes. The most recent and highest quality study supports the notion that peptic ulcer disease is the most common cause of upper GI bleeding 1.

From the Research

Causes of Upper GI Bleeding

The most common cause of upper GI bleeding is:

  • Peptic ulcer disease, as stated in studies 2, 3, 4, 5, 6

Comparison of Causes

Other options, such as:

  • Esophageal varices
  • Gastritis
  • Mallory-Weiss tear are also causes of upper GI bleeding, but they are not the most common cause, according to the studies 2, 3, 4, 5, 6

Key Findings

The studies consistently show that peptic ulcer disease is the leading cause of upper GI bleeding, with other causes being less common. For example, study 2 states that peptic ulcer disease is the most common cause of upper GI bleeding, which is largely due to the intake of NSAIDs and Helicobacter pylori infection. Similarly, study 5 mentions that the most frequent cause of upper GI bleeding is peptic ulcer disease.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Upper gastrointestinal bleeding - state of the art.

Folia medica Cracoviensia, 2014

Research

Acute upper gastrointestinal bleeding (UGIB) - initial evaluation and management.

Best practice & research. Clinical gastroenterology, 2013

Research

Managing a patient presenting to the emergency department with upper gastrointestinal bleeding.

Emergency nurse : the journal of the RCN Accident and Emergency Nursing Association, 2022

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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