A 38-year-old member asked:
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blood test for constipation from colon cancer?

2 doctor answers
Dr. Gurmukh Singh
48 years experience Pathology
No good test: There is no good blood test for either constipation or colon cancer. In late colon cancer CEA levels are usually elevated, but there are other causes of elevated cea.
Answered on Feb 13, 2015
Dr. Rafael Lugo
27 years experience General Surgery
None: This is not something that exists.
Answered on Mar 6, 2015

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Don't worry: Likely hemorrhoids. Go to your doctor and have it checked out.
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