Final answer:
Fecal occult blood test and colonoscopy can be used to detect colorectal cancer.
Step-by-step explanation:
Colorectal cancer can be detected using the fecal occult blood test and colonoscopy.
The fecal occult blood test looks for hidden blood in the stool, which can indicate the presence of colorectal cancer. Blood in the stool can be occult, meaning that it is not visible to the eye, but can be detected through this test. It is a non-invasive and cost-effective screening method.
A colonoscopy is a procedure that allows doctors to examine the colon and rectum for abnormalities, such as polyps or tumors. During a colonoscopy, precancerous polyps can be identified and removed, preventing them from developing into cancer.