This is one reason screening is so important. Certain screening tests can identify precancerous polyps and allow them to be removed before they become cancerous.

Colon cancer and rectal cancer are often grouped together under the term colorectal cancer, because they share many characteristics and risk factors.

1. A Persistent Change in Your Bowel Habits

One of the signs worth paying attention to is a persistent change in your normal bowel pattern.

This could include: