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A member asked:
I just had a colonoscopy this year it came out fine. my doc. did a blood test last month and it came back positive. could i get cancer that fast?
6 doctors weighed in across 3 answers
Uh, wait...: No blood test is diagnostic for colon cancer. Possibly your CEA was a bit high but that proves nothing if you're not a smoker; otherwise i must assume there is a misunderstanding. Life's tough enough without having a worry like this one. Any doubts, get a second opinion.
Answered 2/13/2015
5.6k views
Unlikely: But there are a lot of reasons for blood in the stool. Certainly colonoscopy is not 100% as well. I am sure your doctor is working through the possible causes.
Answered 8/23/2013
5.6k views
What test?: There is no blood test for colon ca. Cea can be a marker for colon ca as well as many other conditions, including benign (not cancer). Can't diagnose colon ca just by using cea; can help monitoring colon cancer patients once a diagnosis has been made, i.e. Biopsy proved mass. Colonoscopy is best test, but not perfect-can have a miss rate of abnormalities, including polyps and cancer.
Answered 9/13/2019
5.6k views
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Im 22 and have dark brown stools.had blood and fecus test and colonoscopy 2 months back evrything is normal.scared of having stomach cancer.
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I have had blood in my stool off and on for years. Ihad a colonoscopy back in 2007 eeverything ok except the hemmroids.Dr wants another. Cancer?
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