Fecal immunochemical test (FIT)
Guaiac fecal occult blood test (gFOBT)
Stool DNA test
CT colonography
Flexible sigmoidoscopy
Blood tests for anemia or other abnormalities
Carcinoembryonic antigen (CEA) test
Symptom assessment by a healthcare professional
Digital rectal exam
Biopsy of suspicious tissue from another procedure
Imaging tests such as CT scan or MRI if cancer is suspected
Genetic testing if there is a strong family history or inherited risk
Regular screening based on age and risk factors