Cancer staging can feel confusing, but the basic idea is simple: staging describes how far cancer has spread from where it started. That information helps guide what options may be considered and what kind of support the body may need. In broad terms, Stage 1 usually means the cancer is still small and localized in the original area. Stage 2 generally means it has grown deeper into the tissue but remains within the same organ. Stage 3 often indicates involvement of nearby lymph nodes. Stage 4 me

What is TNM staging for bowel cancer?