True
The correct answer is False.
There are many different tests to look for colorectal cancer. Types of available screenings can be separated
into two main groups:
1. Stool-based tests: These tests are non-invasive and can be done at home. They look for
signs of cancer in
your stool and should be done every one to three years. They include:
- Fecal immunochemical test (FIT)
- Guaiac-based fecal occult blood test (gFOBT)
- Stool DNA test
If any of these tests show unusual results, a colonoscopy is needed for further examination.
2. Visual tests: These tests let doctors look directly at the colon and rectum using a viewing scope or CT scan.
They require more preparation but are done less often. They should be done every five to ten years and
include:
- Colonoscopy
- CT colonography (virtual colonoscopy)
- Flexible sigmoidoscopy