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There are several reasons why stool can appear black or red in color. One reason is blood, with causes both common and serious, but the others may surprise you. ... Colon polyps can also cause red blood to appear in the stool. Polyps are growths on the inside of the colon that are believed to be the precursors to colon...
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ibdcrohns.about.com/cs/otherdiseases/a/redblackstool.ht...
ibdcrohns.about.com/cs/otherdiseases/a/redblackstool.htm
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Hemorrhoids are a common cause of bright red blood in the stool or on the toilet paper. A hemorrhoid is actually a form of vericose vein. The veins in and around the rectum and anus become swollen.
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ibdcrohns.about.com/cs/otherdiseases/a/redstool.htm
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When a patient says he sees blood in the stool he is rarely wrong. The only thing that he can confuse with fresh blood (hematochezia) is a red dietary pigment that might escape digestion. The pigment in beets, if eaten in large quantities, can produce a dark red stool; ... 7. Blood in the Stool...
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www.oralchelation.com/LifeGlowBasic/technical/p69.htm
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Rarely, the bleeding may be so severe as to cause shock from the loss of blood. Moderate or severe rectal bleeding usually is evaluated and treated in the hospital. Patients with signs and symptoms of a reduced volume of blood often require emergency hospitalization, and transfusion of blood...
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www.medicinenet.com/rectal_bleeding/article.htm
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Rarely, massive bleeding from the right colon, from the small intestine, or from ulcers of the stomach or duodenal can cause rapid transit of the blood through the gastrointestinal tract and result in bright red rectal bleeding.
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www.medicinenet.com/rectal_bleeding/symptoms.htm
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It is, therefore, important that the specific cause of rectal bleeding be identified so appropriate treatment can be started and the problem corrected. Even though rectal bleeding may not be serious, an individual should never assume this ... Hemorrhoids - These are dilated blood vessels or veins in the anal or rectal area.
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www.gicare.com/pated/ecdgs29.htm
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Abnormal collections of blood vessels called arteriovenous malformations (AVMs) and tumors in the intestine may also cause lower GI bleeding. However, sometimes massive or rapid bleeding in the stomach ... Brisk bleeding in the esophagus or stomach (such as with peptic ulcer disease), can also cause you to vomit blood...
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www.nlm.nih.gov/medlineplus/ency/article/003130.htm
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Colon cancer is not a common cause of rectal bleeding, however it is more common for colon cancer to cause blood to be in the bowel movements. In this case the blood may not be visibe. There are special tests that may be performed to show that there is blood present in the stool.
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www.colonzone.org/blood-in-bowel-movement.php
www.colonzone.org/blood-in-bowel-movement.php
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Many people believe that oral iron medications cause a false positive fecal blood test. They really do not. The only problem is that it may confuse someone in reading the test because the dark green or black appearance of iron in the stool may may be mistaken for the blue color typical of a positive guiac test.
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www.wdxcyber.com/ncancer2.htm
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