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بسم
الله الرحمن
الرحيم
The Essay Of The Week
Diarrhea ,
frequent passage of abnormally loose, watery stool. Diarrhea usually
develops suddenly and may last from several hours to a few days. It
is often accompanied by abdominal pains, low fever, nausea, and
vomiting. If the attacks are severe or increasingly frequent,
exhaustion and dehydration can result. In normal digestion the large
intestine absorbs excess water from liquid food residues produced by
earlier phases of the digestive process before excreting semisolid
stools. When the mucous membrane lining the large intestine is
irritated o r inflamed, food residues move through the large
intestine too quickly and the resulting stool is watery because the
large intestine cannot absorb the excess water.
Diarrhea is not a disease. It is a symptom of
numerous disorders, such as food poisoning from contaminated foods
or beverages, infections by viruses and bacteria, or anxiety.
Chronic diarrhea, which lasts weeks or months, may be caused by
amoebic dysentery (intestinal infection), tumors, and other serious
intestinal disorders such as Crohn’s
disease, ulcerative
colitis, or irritable
bowel syndrome. Except in the
case of irritable bowel syndrome, the stool may contain blood or
pus.
The usual treatment for diarrhea consists of bed
rest, drinking liquids to replace fluids and salts lost from the
body, and eating soft foods. Dehydration is a serious concern in
infants and the elderly. If the condition lasts more than a few
days, a physician should be consulted.
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