[header] How to tell if colorectal cancer has spread to your bones [title] Have x-rays taken of your bones. [step] Most cases of bone cancer can be identified through an x-ray of the bone. The affected bone may appear to be worn out instead of being firm or solid. 
[substeps] A hole-like structure in the bone can be indicative of cancer. There are also instances where the tumor around the bone becomes visible and is already affecting the surrounding tissues.