A common blood test for cancer markers

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Category : Cancer Test, Blood Test,

A common blood test for cancer markers includes Prostate-specific antigen (PSA) for prostate cancer, Cancer antigen 125 (CA 125) for ovarian cancer, and Cancer antigen CA15-3 for breast cancer. Other markers like Alpha-fetoprotein (AFP) for liver cancer and Human chorionic gonadotropin (HCG) for germ cell tumors can also be tested.

Here's a more detailed list:
Prostate-specific antigen (PSA): Primarily used to screen for and monitor prostate cancer.

Cancer antigen 125 (CA 125): Used to screen for and monitor ovarian cancer.

Cancer antigen CA15-3: Used to monitor breast cancer.

Alpha-fetoprotein (AFP): Used to screen for and monitor liver cancer and germ cell tumors.

Human chorionic gonadotropin (HCG): Used to screen for and monitor germ cell tumors.

Carcinoembryonic antigen (CEA): Used to monitor colorectal cancer and can be elevated in other cancers.

Cancer antigen 19-9 (CA 19-9): Used to screen for and monitor pancreatic cancer.

Beta-2-microglobulin (B2M): Used to monitor multiple myeloma and some lymphomas.

Calcitonin: Used to screen for and monitor thyroid cancer.

Complete blood count (CBC): Used to detect blood cancers like leukemia and lymphoma, and also to monitor the overall health of patients with cancer.
Blood protein electrophoresis: Used to diagnose multiple myeloma.


The carcinoembryonic antigen (CEA) test checks the blood for CEA, a nonspecific cancer biomarker. Doctors who suspect a person may have colon cancer may order a CEA test to check for elevated levels of the antigen.

CEA in the blood can indicate the presence of cancer, but it cannot identify the exact cancer a person may have.