• What is a Cancer Marker?

    Asked by thil2633 on Saturday, March 23, 2013

    What is a Cancer Marker?

    Can someone explain what a cancer marker test is? I have heard people mention this and I am not sure what it is. My Dr. has never said anything about having one done.

    4 Answers from the Community

    4 answers
    • gwendolyn's Avatar

      A similar question was posted recently. Perhaps you will find these replies helpful: https://www.whatnext.com/questions/cancer-markers-after-treatment-is-over

      over 5 years ago
    • nancyjac's Avatar

      Cancer or tumor markers are substances found in the blood, urine, stool, other bodily fluids, or tissues of some patients with cancer. They may be used to help diagnose cancer, predict a patient’s response to certain cancer therapies, check a patient’s response to treatment, or determine whether cancer has returned. There are currently more than 20 currently in use. The ones most widely used for breast cancer are CA 15-3 and CEA. Their levels can be tested though a simple blood test. They are used as indicators, but since other conditions can elevate the levels of these markers, they can't be used by themselves for diagnosis or treatment.

      over 5 years ago
    • SueRae1's Avatar

      My markers are tested every few months as part of my regular pre-treatment blood draws. Ask your doctor is has done this? He may not have mentioned anything if they came back normal. - Though he should have. I know my bc markers were ever so slightly elevated last May when I was diagnosed with stage IV BC and were normal after 3 months of treatment. My Kidney cancer marker has been normal for the whole 3.75 years I've been treated for it.

      Now my oncologist just tells me that my blood work is normal, if there is an issue, we will discuss it, and he will let me know that all blood work was fine.

      over 5 years ago
    • carm's Avatar

      They are biomarkers produced in the body. Some are used to diagnose and some are used to gage the effectiveness of the treatment. I am attaching a link that will explain each one and their function. I send this to all my patients. Best of luck, Carm RN.


      over 5 years ago

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