She blamed irritable bowel syndrome, constipation and even a tight bra. Looking back, she had some classic symptoms of colon ...

and make your stool look bloody or black. You could also see blood in the toilet or on tissue if you have hemorrhoids, though it usually looks bright red. Colorectal cancer can cause any of these ...

Blood in the stool can sometimes be linked to less serious conditions, but it’s also a classic symptom of colon cancer that experts warn should never be brushed off. In fact, a 2024 study ...

Colon cancer, like many other cancers ... as can severe diarrhea. Alarmed by the color and frequency of the blood in her stool, Mahon was referred to a GI doctor who initially thought she had ...

also tests blood in the stool. But it also tests for specific forms of DNA associated with colon cancer and advanced polyps. If either of those test positive, it's recommended that patient get a ...

A new blood test was found to detect colon cancer with more than 80% accuracy — and to rule it out for 90% of healthy people. The results were presented at the 2025 American Society of Clinical ...

“Additional colorectal cancer screening tests that are convenient, safe, and easy to complete are needed,” Shaukat said.

A new blood-based test for colorectal cancer shows promising results offering a less invasive and more accessible alternative to traditional colonoscopy. The blood test aims to detect colorectal ...

In a federally qualified health care setting, prioritizing noninvasive colorectal cancer (CRC) blood tests over existing stool-based tests may lead to higher costs and worse outcomes, a study finds.

“Until now, we have only had stool-based tests and colonoscopy or sigmoidoscopy. A blood test has the potential for improving colorectal cancer screening rates,” she added. For the ...