colon cancerCancer pain can result from many sources. In colon cancer, the tumor can compress the colon or even spread to other parts of the body like the liver or bone. Surgery, chemotherapy, and radiation therapy may all contribute to discomfort, even after the cancer is eliminated.  Colon cancer survivor Edel Blumberg shares his triumphs over the disease as well as his struggles with persistent pain. Oncologist and colon cancer specialist Dr. Luis Diaz from Johns Hopkins then offers his special expertise on detection, treatment, and outcomes.