Created by Guardant Health, the blood test, known as Shield, was able to detect 83% of colorectal cancers in studies but only 13% of dangerous polyps. Colonoscopies find approximately 95% of these ...
“Blood from those tumors has a shorter ... He tells HuffPost that colon cancer patients often have very thin stools. “This tends to occur if tumors are present near the end of the colon ...
Cercek points out—younger people can also develop cancer higher up in the colon, which may cause darker blood or no blood at all.) When Mariely Del Valle, 42, first noticed blood in her stool ...
Grady said current options for colorectal cancer screening include a fecal immunochemical test known as FIT, which is a stool-based test that screens for blood in the stool to detect colon cancer.