The Full Wiki

Hematochezia: Wikis

Advertisements
  

Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.

Encyclopedia

From Wikipedia, the free encyclopedia

Hematochezia
Classification and external resources
ICD-9 578.1
DiseasesDB 19317

Hematochezia is the passage of maroon colored stool [1]. It is distinguished from melena, which is stool with blood that has been altered by reaction with stomach acids and appears black/"tarry". It is also different from bright-red blood per rectum (BRBPR). Hematochezia is commonly associated with lower gastrointestinal bleeding, but may also occur from a brisk upper GI bleed.

Contents

Causes

In adults, most common causes are hemorrhoids and diverticulosis, both of which are relatively benign; however, it can also be caused by colorectal cancer, which is potentially fatal. In a newborn infant, hematochezia may be the result of swallowed maternal blood at the time of delivery, but can also be an initial symptom of necrotizing enterocolitis, a serious condition affecting premature infants. In adolescents and young adults, inflammatory bowel disease, particularly ulcerative colitis, is a serious cause of hematochezia that must be considered and excluded.

Hematochezia can be due to upper gastrointestinal bleeding. However, as the blood from such a bleeding is usually chemically modified by action of acid and enzymes, it presents more commonly as melena. Hematochezia from an upper gastrointestinal source is an ominous sign, as it suggests a very brisk bleed which is life threatening.

See also

References

  1. ^ Common Medical Diagnoses: An Algorithmic Approach. Patricia Healey and Edwin Jacobson. 4th Edition. Page 44 - GI bleeding.

External links

Advertisements

Advertisements






Got something to say? Make a comment.
Your name
Your email address
Message