Hi @natakadrit, I can imagine that any change in tumor markers is worrisome. CEA or carcinoembryonic antigen (as well as other markers like CA27-29) plays a role in diagnosis, monitoring response to therapy, early detection of metastasis and determination of recurrence in patients with breast cancer. But CEA alone doesn't tell the full story. As @cindylb aptly said in another discussion "Tumor marker tests are one tool doctors have to monitor but they can have great change and variables." And @mom23boys said "people's numbers bounce around and no two people seem to have the same starting point or "normal".

Further monitoring will tell if this reading is an anomoly or needs further testing. I know that November seems like a long way off. Might you be able to ask for an earlier appointment or additional blood tests to monitor between now and November? Your mom's doctor should at least be able to explain why that isn't necessary if it isn't or order new tests.