• Colorectal Cancer Defined

• Causes and Risk Factors

• Symptoms and Diagnosis

• Frequently Asked Questions

• MedlinePlus for More Information

Here are the stages of colorectal cancer:

• Stage 0 -- The cancer is very early and is found only in the innermost lining of the colon or rectum.
• Stage I -- The cancer involves more of the inner wall of the colon or rectum.