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(dīərē`ə), frequent discharge of watery feces from the intestines, sometimes containing blood and mucus. It can be caused by excessive indulgence in alcohol or other liquids or foods that prove irritating to the stomach or intestine, by allergy to certain food products, by poisoning with heavy metals, by chemicals such as are found in cathartics, by hyperactivity of the nervous system, and by infection with a virus (intestinal grippe) or with bacteria or their toxins. Diarrhea is a concomitant of many infectious diseases, especially typhoid fevertyphoid fever
acute, generalized infection caused by Salmonella typhi. The main sources of infection are contaminated water or milk and, especially in urban communities, food handlers who are carriers.
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, bacillary or amebic dysenterydysentery
, inflammation of the intestine characterized by the frequent passage of feces, usually with blood and mucus. The two most common causes of dysentery are infection with a bacillus (see bacteria) of the Shigella group, and infestation by an ameba,
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, and choleracholera
or Asiatic cholera,
acute infectious disease caused by strains of the bacterium Vibrio cholerae that have been infected by bacteriophages. The bacteria, which are found in fecal-contaminated food and water and in raw or undercooked seafood, produce a
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. Persistent diarrhea may result in severe dehydration and shock. It is therefore necessary to replace the fluid lost by the body. Treatment is with a bland diet and drugs that will decrease the activity of the intestines, as well as with specific measures directed at the underlying cause. The elderly are at especially high risk for diarrheal deaths caused by viruses. Ulcerative colitis is an inflamatory and ulcerative disease of the colon, properly described as "irritable bowl," and characterized by bloody diarrhea. Crohn's disease affects the distal ileum and colon, but may occur in any part of the gastrointestinal tract, from the mouth to the anus and perianal area. The symptoms are chronic diarrhea associated with abdominal pain, fever, anorexia, weight loss, and a mass or fullness in the right lower quadrant (of the abdomen).
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



frequent excretion of liquid intestinal contents. Diarrhea is the main symptom of such acute bacterial and viral intestinal diseases as dysentery, food poisonings, and colienteritis, as well as of cholera, intestinal invasions, and other inflammatory intestinal diseases. It can also be a symptom of chronic lesions of other digestive organs, for example, the stomach and pancreas; of general chronic diseases, such as tuberculosis; and of acute and chronic poisonings of exogenous (as from heavy metals) and endogenous (from renal insufficiency) origin. Diarrhea may also result from metabolic disturbances, from ingestion of excessive or coarse food, or from neuroses. In addition, it occurs in infantile, fermentative, and putrefactive dyspepsia.

The development of diarrhea is related to the liquefaction of the intestinal contents owing to an inflammatory exudate or to an accumulation of fluid in the intestinal lumen when the fluid’s absorption is hindered. The intestinal contents move more rapidly, stimulated by the prostaglandins, and there is a change in the transport of sodium and other electrolytes as well as osmotic shifts in the intestine. False, or constipation, diarrhea is a secondary liquefaction of the intestinal contents during prolonged constipation; a small quantity of liquid feces is excreted frequently.

The diagnosis of diarrhea varies with the disease and is based on the medical history and on examination of the feces. Therapy consists of treatment of the basic disease; special diets, antiinfectives, astringents, and enzymes are prescribed for symptomatic relief.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


The passage of loose or watery stools, usually at more frequent than normal intervals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


(esp US), diarrhea
frequent and copious discharge of abnormally liquid faeces
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
TREAT IT: If "Delhi belly" strikes, minimise the effects with Imodium capsules (pounds 2.75, Boots), drink plenty ly" ts es ty of fluids and use rehydration sachets such as Dioralyte Relief Blackcurrant sachets (pounds 3.75, Boots).
Being away is great, whether it is a high adrenalin holiday or a relaxing beach break, as long as you don't break a leg or succumb to Delhi Belly. I think the results of the experiment are self-evident.
With rich experience of over a decade in handling projects for some of the country's most recognized Animation & VFX films like Golmaal 3, Bodyguard, Aarakshan, Singham, Delhi Belly, Double Dhamaal, Toonpur Ka Superhero among others, Viral addressed young aspirants on the art of Animation & VFX in Bollywood movies.
He is crippled by the worst case of Delhi Belly, but that's nothing compared to the pain to come when all three friends become the unlikely targets of a deadly crime syndicate.
HAVING listened to and, on the odd occasion, resorted to the jibe "Delhi Belly", I feel a word of praise would not go amiss in respect of the host country for the Commonwealth Games, those taking part, their coaches and the spectators.
While the trio of English swimmers enjoyed success, the complexion of the meet altered drastically as Delhi belly took hold - with more than half the British swimmers treated for varying levels of illness.
England's 4x100m medley relay team And having repeated her European Championship efforts and climbed the podium five times and battled Delhi Belly Halsall insists it is time to put her feet up.
But Davies insisted he had not been affected by the Delhi belly that has struck down a lot of the swimmers.
Rocked by a bout of Delhi Belly Halsall's ambition of topping the podium on six occasions in India are a distant memory as a second gold slipped through her fingers yesterday.
The book says Yellow fever, though it could be Delhi Belly
Scientists have won funding to identify the causes of so-called Delhi Belly, which is thought to strike down half of all British travellers to Third World countries.

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