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Contents
  • Understanding LGIB
  • Common Causes of LGIB
  • Diagnosing LGIB

Unveiling the Mystery of Lower GI Bleeding: What Could It Be?

Unveiling the Mystery of Lower GI Bleeding: What Could It Be?

What's This About?

Lower gastrointestinal bleeding (LGIB) can be alarming, but understanding its causes can help in managing the condition effectively. This article sheds light on the various reasons behind LGIB and offers insights into its diagnosis.
Contents
  • Understanding LGIB
  • Common Causes of LGIB
  • Diagnosing LGIB

Understanding LGIB

Lower gastrointestinal bleeding refers to blood loss originating from the intestines below the ligament of Treitz. It can manifest as bright red or maroon blood in the stool. Unlike upper GI bleeding, which may cause vomiting of blood, LGIB often results in hematochezia, making it crucial to differentiate between the two for accurate diagnosis.

Common Causes of LGIB

The primary causes of LGIB include diverticulosis, vascular issues like angiodysplasia, inflammatory conditions such as inflammatory bowel disease, and neoplastic sources like colon cancer. Diverticulosis is the most prevalent, accounting for up to 55% of cases, while angiodysplasia is more common in older adults.
Lower gastrointestinal bleeding involves blood loss from the intestines below the ligament of Treitz, often presenting as hematochezia. Common causes include diverticulosis, angiodysplasia, inflammatory bowel disease, and colon cancer.

Diagnosing LGIB

Determining the source of LGIB involves various diagnostic tools. A colonoscopy can help identify diverticula or vascular abnormalities. In some cases, imaging or endoscopic techniques are used to pinpoint the exact cause. Accurate diagnosis is essential for effective treatment.

FAQs

What is LGIB?

LGIB refers to bleeding from the lower part of the gastrointestinal tract.

What are common causes of LGIB?

Diverticulosis, angiodysplasia, and inflammatory conditions are common causes.

How is LGIB diagnosed?

Colonoscopy and imaging techniques are often used for diagnosis.

Is LGIB life-threatening?

It can be severe, but many cases are self-limiting.

The Bottom Line

Understanding the causes of LGIB is the first step towards effective management and treatment.
Get started by talking with Doctronic to learn more about LGIB and its management.
Additional References
  1. Zuccaro G Jr. Management of the adult patient with acute lower gastrointestinal bleeding. Am J Gastroenterol 1998; 93:1202.
  2. Drezdzon MK, Peterson KJ. Evaluation and Management of Lower GI Bleeding. Dis Colon Rectum 2022; 65:785.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic.