This document explains the significance of biomarker testing in the management of cancer and how this crucial information shapes treatment decisions to achieve optimal outcomes. Tremendous progress has been made in treating colorectal cancer over the last 15 years. In the past, all individuals with colorectal cancer received the same standard therapy. However, we now recognize that each person's colorectal cancer is unique, requiring tailored treatment options. Biomarker testing unlocks precise genetic and molecular details, empowering healthcare providers/oncologists to tailor a personalized treatment plan for you.