Caption =
DiseasesDB = 19317
ICD10 =
ICD9 = ICD9|578.1
MedlinePlus =
eMedicineSubj =
eMedicineTopic =
MeshID =

Hematochezia is the passage of bright red, bloody stools from the rectum [cite web |url=http://www.emedicine.com/asp/dictionary.asp?keyword=hematochezia |title=eMedicine/Stedman Medical Dictionary Lookup!: hematochezia |work=Stedman's Dictionary |accessdate=2006-06-10 |year=2005 |publisher=eMedicine.com] . It is also known as "bright red blood per rectum" and abbreviated BRBPR.It is distinguished from melena, which is stool with blood that has been altered by the gut flora and appears black/"tarry". Hematochezia is commonly associated with lower gastrointestinal bleeding.


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 frequently fatal. In a newborn infant (neonate), 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.

ee also

* Blood in stool


External links

* [http://www.medscape.com/viewarticle/490741 Case presentation]
* [http://www.medicinenet.com/rectal_bleeding/article.htm 13 pages at medicinenet.com]

Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Hematochezia — Bright red blood in the stool, usually from the lower gastrointestinal tract the colon or rectum or from hemorrhoids. The term hematochezia is rarely used. Bright red blood in the stool is more widely used (and understood). * * * Passage of… …   Medical dictionary

  • hematochezia — /hi mat oh kee zee euh, hee meuh toh , hem euh /, n. Pathol. the passage of bloody stools. [HEMATO + Gk chéz(ein) to defecate + IA] * * * …   Universalium

  • hematochezia — noun the passing of bloody stools …   Wiktionary

  • hematochezia — n. passage of bloody stools (usually due to gastrointestinal bleeding) …   English contemporary dictionary

  • hematochezia — noun passage of stools containing blood (as from diverticulosis or colon cancer or peptic ulcer) • Syn: ↑haematochezia • Hypernyms: ↑defecation, ↑laxation, ↑shitting * * * /hi mat oh kee zee euh, hee meuh toh , hem euh /, n. Pathol. the passage… …   Useful english dictionary

  • Melena — For the flowering plant, see Cymbalaria muralis. For cities in Cuba with similar names, see Melena del Sur and Güira de Melena. Melena Classification and external resources ICD 10 K92.1 ICD …   Wikipedia

  • Digestive disease — Classification and external resources MeSH D004066 All diseases that pertain to the gastrointestinal tract are labelled as digestive diseases. This includes diseases of the esophagus, stomach, first, second, and third part of the …   Wikipedia

  • Melena — Stools or vomit stained black by blood pigment or dark blood products. * * * Passage of dark colored, tarry stools, due to the presence of blood altered by the intestinal juices. Cf.:hematochezia. SYN: melanorrhagia, melanorrhea. [G. melaina, fem …   Medical dictionary

  • Cirrhosis — Classification and external resources A person with massive ascites and caput medusae due to cirrhotic liver failure ICD 10 K …   Wikipedia

  • Hepatitis — Classification and external resources Alcoholic hepatitis evident by fatty change, cell necrosis, Mallory bodies ICD 10 K …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”