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Adults, especially the elderly, may show a more complicated presentation. [2] [6] Complications may include neurological problems and heart failure. [1] Most cases occur after infectious diarrhea due to a specific type of E. coli called O157:H7. [2] Other causes include S. pneumoniae, Shigella, Salmonella, and certain medications.
The presence of bright red blood in stool, known as hematochezia, typically indicates lower gastrointestinal bleeding. Digested blood from the upper gastrointestinal tract may appear black rather than red, resulting in "coffee ground" vomit or melena. [2] Other signs and symptoms include feeling tired, dizziness, and pale skin color. [18]
A lower gastrointestinal bleed is defined as bleeding originating distal to the ileocecal valve, which includes the colon, rectum, and anus. [2] LGIB was previously defined as any bleed that occurs distal to the ligament of Treitz, which included the aforementioned parts of the intestine and also included the last 1/4 of the duodenum and the entire area of the jejunum and ileum. [1]
Symptoms include diarrhea, abdominal pain, gas, bloating, and mucous or blood in stool. It’s often diagnosed via a colonoscopy or other test, and treatments include anti-inflammatory or steroid ...
Blood in stool looks different depending on how early it enters the digestive tract—and thus how much digestive action it has been exposed to—and how much there is. The term can refer either to melena, with a black appearance, typically originating from upper gastrointestinal bleeding; or to hematochezia, with a red color, typically originating from lower gastrointestinal bleeding. [6]
Symptoms normally present themselves after 1–3 days, and are usually no longer present after a week. The frequency of urges to defecate, the large volume of liquid feces ejected, and the presence of blood, mucus, or pus depends on the pathogen causing the disease. Temporary lactose intolerance can occur, as well.
Diarrhea is defined by the World Health Organization as having three or more loose or liquid stools per day, or as having more stools than is normal for that person. [2] Acute diarrhea is defined as an abnormally frequent discharge of semisolid or fluid fecal matter from the bowel, lasting less than 14 days, by World Gastroenterology ...
They usually crop up after an episode of constipation, but can also occur after diarrhea. If you feel pain back there when you're going number two, or see blood on your TP, you might be dealing ...