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healthdiary365.com/what-color-is-stool-with-colon-cancer

Blood in stool is mostly an early warning sign for colon cancer. Blood in stool may go unnoticed in some cases, though how severe symptoms are greatly revolves around the location and advancement of the colon cancer.. The color of stool with colon cancer may look dark or black, suggesting the presence of dried blood.

bestlifeonline.com/colon-cancer-boseman

Those with colon cancer often notice changes in their stool, including darkened color (usually the result of blood entering the digestive tract), softened consistency, or a more "narrow" shape. If you notice any prolonged changes, be sure to talk to your doctor about screening for colon cancer.

health.clevelandclinic.org/can-stool-tests-really-detect-colon-cancer

The older hemoccult test finds hidden blood in the stool. Its accuracy in detecting cancer varies but can be as high as 70 percent. However, the hemoccult test cannot detect colorectal polyps.

www.cancer.org/latest-news/understanding-tests-that-screen-for-colon-cancer

Stool-based tests are non-invasive colorectal cancer screening options. No special diet or bowel preparation (no laxatives or enemas) is required for a stool-based test. However, if the test does show abnormal signs of blood or a possible cancer or pre-cancer, a colonoscopy will be needed to confirm the result, and possibly to remove any ...

my.clevelandclinic.org/health/symptoms/14612-rectal-bleeding

Rectal bleeding is a symptom of conditions like hemorrhoids, anal fissures, inflammatory bowel disease (IBD), ulcers and colorectal cancer. Typically, you notice rectal bleeding on toilet paper, in the water of the toilet bowl or in your stool.

www.cdc.gov/cancer/colorectal/basic_info/screening/tests.htm

Several screening tests can be used to find polyps or colorectal cancer. The Task Force outlines the following colorectal cancer screening strategies. Talk to your doctor about which test is right for you. Stool Tests. The guaiac-based fecal occult blood test (gFOBT) uses the chemical guaiac to detect blood in the stool. It is done once a year.

www.gastroconsa.com/the-truth-about-cologuard-tests

How accurate is stool test for colon cancer? There are two types of stool tests for colon cancer. Fecal Immunochemical Test (FIT) and Stool DNA (Cologuard). FIT detects 70% of colon cancers and 30% of large colorectal polyps. Stool DNA/Cologuard detects 92% of cancers and 42% of large colorectal polyps.

www.medicinenet.com/blood_in_the_stool_rectal_bleeding/article.htm

Rectal bleeding is the passage of blood through the anus. The bleeding may result in bright red blood in the stool as well as maroon colored or black stool.The bleeding also may be occult (not visible with the human eye). The common causes of rectal bleeding from the colon include anal fissure, hemorrhoids, diverticulosis, colon cancer and polyps, colonic polyp removal, angiodysplasias ...

www.md-health.com/stool-color-chart.html

Stool examination for occult blood, which can screen for lower gastrointestinal bleeding due to cancer and other diseases Immunological test to detect blood in the stool Upper gastrointestinal endoscopy procedure to examine for bleeding from the esophagus and stomach; endoscopic procedures involve the use of small instruments with a camera ...

www.cancer.gov/types/colorectal/screening-fact-sheet

In the United States, colorectal cancer is most common in adults aged 65 to 74. Rates of new colorectal cancer cases are decreasing among adults aged 50 years or older due to an increase in screening and to changes in some risk factors (for example, a decline in smoking) ().However, incidence is increasing among younger adults (1 – 3), for reasons that are not known.