Colon Cancer Recurrence After Surgery: Risks, Factors & What to Watch For

Colon cancer can recur after surgery due to residual microscopic cells or new development. Recurrence risk depends on cancer stage, surgical margins, lymph node involvement, and patient health. It may reappear locally (colon/rectum) or metastasize (liver, lungs, lymph nodes).

Recurrent disease is treated with chemotherapy, radiation, surgery, or targeted therapy. Surveillance is critical: regular follow-up with blood tests (CEA), stool tests, colonoscopy, and imaging (CT, PET) per guidelines.