Hi @lida55, as you may already know CEA levels can mean many things. Here's some info from the American Association for Clinical Chemistry. https://labtestsonline.org/understanding/analytes/cea/tab/test/ which states "Increased CEA levels can indicate some non-cancer-related conditions, such as inflammation, cirrhosis, peptic ulcer, ulcerative colitis, rectal polyps, emphysema, and benign breast disease."

Monitoring CEA levels is only one tool for tracking possible progression of disease. Changing CEA levels are worrying. It's hard to remain calm about it. Have you met with your husband's oncologist in the meantime? What did you find out?