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Doctor insights on: Fecal Test For Colon Cancer

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What is a fecal occult test in detecting colon cancer?

What is a fecal occult test in detecting colon cancer?

Test for blood in BM: The fobt tests for blood in the stool. Test is performed on spontaneously voided stool on three separate occasions. Presence of blood in any of the samples is a "positive" test. Blood may indicate cancer, hemorrhoids, blood vessel abnormality, local irritation or a host of other non life threatening things. However, blood in the stool is a finding that needs follow up with a more specific test. ...Read more

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Dr. Barry Rosen
4,214 doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more


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How accurately will a fecal test find early stage colon cancer? The one that looks for cancer blood markers. Please help!! Approximate percentage.

How accurately will a fecal test find early stage colon cancer? The one that looks for cancer blood markers. Please help!! Approximate percentage.

Pretty low: Conventional assessment of colorectal cancer (CRC) risk largely involves detection of non-dysplastic adenomatous polyps. Standardized sensitivity was 48.2%, for CRC stages I-IV, values were 35.0%, 63.0%, 46.0% and 77.4%, respectively. Specificity was 91.5%. Sensitivity for advanced adenomas was low (11.2%). Ref: Mol Diagn Ther. 2014 Apr;18(2):127 & Gut. 2014 Feb;63(2):317 ...Read more

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How does an iscreen fecal occult blood test detect colon cancer?

How does an iscreen fecal occult blood test detect colon cancer?

No: A fecal occult test tests for blood in the stool. Colon cancer can be a cause but so can colon polyps, hemorrhoids, stomach ulcer and many other causes. Anyone with a positive fobt test should have further work up done to evaluate where the blood is coming from. ...Read more

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Can colon cancer be diagnosed on a fecal occult blood test?

Can colon cancer be diagnosed on a fecal occult blood test?

FOBT is screen: Fobt is designed to test for blood in stool. Blood in stool may be due to any bleeding in the GI tract from the gums to the anus; and there are false positives also. If fobt is positive, colonoscopy is generally recommended to look of colon cancer. Fobt per se is not a diagnostic test for cancer, just blood in stool. ...Read more

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Can a fecal occult blood test tell me if I have colon cancer?

Can a fecal occult blood test tell me if I have colon cancer?

No: Occult blood in stool suggests a point of bleeding from area near appendix across the colon to the rectum. This could be AV malformation, bleeding polyp, tumor, hemmorhoid or fissure. When blood is detected it has to be defined as to origin. Occassionally colonoscopy will reveal a lesion. Newer stool tests for tumor protein more accurate. ...Read more

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Could a fecal occult blood test tell me if I have colon cancer ?

Could a fecal occult blood test tell me if I have colon cancer ?

Well..: It could show blood in the stool which could mean cancer but not all blood in the stool means cancer and not all colon cancers will have a positive test. Blood in the stool, especially if the patient is anemic, should be evaluated further. ...Read more

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Colon cancer age 30?? RUQ pain, fecal occult test negative- CT- Normal- (GI tract WNL no obstruction or perforation) should I get colonoscopy for pain

Colon cancer age 30?? RUQ pain, fecal occult test negative- CT- Normal- (GI tract WNL no obstruction or perforation) should I get colonoscopy for pain

Probably: Colon cancer is unlikely in your age group, but other GI and colon diseases can also cause such symptoms. Have you had your gallbladder evaluated? Remember, colon cancer has minimal symptoms and CT is NOT a great test for it. In sum though low yield I would likely recommend colonoscopy to you based on what I've read. ...Read more

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How accurate Is the schebo stool test in detecting colon cancer with present symtoms?

How accurate Is the schebo stool test in detecting colon cancer with present symtoms?

Not gold standard: It's a pretty good screen but if you're having symptoms, you need to get 'scoped. ...Read more

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I am undergoing many gastro tests.My occult stool samples were negative.Does this assist in helping r/o colon cancer? Thank you

Depends: It depends on what stats you read. In reality, only 25% of colon cancers have occult blood. So, it being negative is a good thing, but by itself not enough. The test carries more weight when it is positive than when negative. ...Read more

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I heard about new lab test Colourguard that can detect colon cancer in person's stool. How do I request such a test? Is it covered by insurance?

I heard about new lab test Colourguard that can detect colon cancer in person's stool. How do I request such a test? Is it covered by insurance?

Blood not cancer: The test looks for blood in the stool and if positive is an indication for colonoscopy. You can ask your doctor for the test. Unless you have family history of early onset colon cancer, you may delay the testing to when you turn 50. ...Read more

Dr. Eric Kaplan
921 doctors shared insights

Colon Cancer (Definition)

Final few yards of your intestine, between the terminal ileum (small bowell) and rectum. It squeezes water and solidifies waste to stool. It is subject to outpouching (divertics) polyps, and these can become cancers. The cells are abnormal, invade into the muscle and travel ...Read more


Dr. Al Hegab
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Colon (Definition)

The colon is another term for the large intestine. This is the final portion of the digestive system, responsible for absorbing water and storing stool before evacuation. It is divided into sections described as cecum; ascending, transverse, descending and ...Read more