There are several screening methods for colorectal cancer, each with its advantages and limitations:
Fecal Occult Blood Test (FOBT): This test checks for hidden blood in the stool, which can be an early sign of cancer. Fecal Immunochemical Test (FIT): Similar to FOBT but more specific to human blood, making it a preferred choice for many. Colonoscopy: A procedure where a long, flexible tube with a camera is used to examine the entire colon and rectum. It is the most comprehensive screening method. Sigmoidoscopy: Similar to a colonoscopy but only examines the rectum and lower part of the colon. CT Colonography: Also known as virtual colonoscopy, this imaging test provides detailed pictures of the colon and rectum. Stool DNA Test: This test detects abnormal DNA associated with colorectal cancer in the stool.
