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A 27-year-old member asked:

What are common symptoms of colorectal cancer?

4 doctor answers9 doctors weighed in
Dr. Barry Rosen
General Surgery 35 years experience
Blockage, Bleeding: The most common symptoms associated with colon cancer include (cramping) abdominal pain, a change in bowel habits ("pencil-thin stools"), bloody bowel movements, weakness/fatigue, and/or weight loss. The goal, of course, is to diagnose colon cancers before symptoms develop; i advise colonoscopy at age 50, or earlier if there is a family history.
Dr. Keith Monson
General Surgery 24 years experience
Blood in stool: Common symptoms of colorectal cancer include blood in the stool, narrowing of the calibre of stools (pencil-thin stools), abdominal cramping or bloating and weight loss. Unfortunately, by the time colon cancer causes symptoms it is often advanced which is why it's so important to get screening colonoscopy starting at age 50' or younger for higher risk patients.
Dr. Robert Cloud
Colon and Rectal Surgery 42 years experience
Colon cancer sxs: Change in bowel habits, blood in the stool, abdominal bloating, weight loss, anemia to name the most comman
Dr. Ryan Gruner
10 years experience
They vary widely : Probably the most common symptom is no symptom at all. However, some people may present with anemia, bleeding in the stool, all the way to an obstructing colon mass. The symptoms vary widely, but the take-home message is to get the appropriate cancer screening. For most, this is a screening colonoscopy at age 50.

Similar questions

CA
A 31-year-old member asked:

What are common early symptoms of colorectal cancer?

2 doctor answers4 doctors weighed in
Dr. Barry Rosen
General Surgery 35 years experience
Often "silent": Unfortunately, colon cancers may develop "under the radar" for quite some time before symptoms occur. The earliest sign is usually anemia caused by a slowly bleeding tumor. As the cancer grows, it may block the colon causing cramping pain, bloating, and/or pencil-thin stools. The gold standard for diagnosing colorectal cancer is screening colonoscopy at age 50, or earlier with a family history.
A 38-year-old member asked:

What are early symptoms of colorectal cancer?

2 doctor answers8 doctors weighed in
Dr. Gurmukh Singh
Pathology 50 years experience
May be none: Many early cancers do not have any symptoms and that is why it is important to have screening tests done, e.g., colonoscopy at age 50 for prevention of colo-rectal cancer. Symptoms may be change in bowel habits, bleeding per rectum, anemia, bowel obstruction and the first symptoms may be from metastases to other organs such as liver.
A 33-year-old member asked:

What are the signs and symptoms of colorectal cancer?

2 doctor answers8 doctors weighed in
Dr. Mark Hoepfner
Surgery 40 years experience
None: Usually there are no symptoms. Later can develop intestinal or rectal bleeding, anemia, weight loss, intestinal blockage, change in bowel movements, etc.
Dr. Joseph Woods
Pathology 29 years experience
Fatigue from anemia also.
Aug 19, 2012

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Last updated Dec 29, 2016

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