CA 125 is a tumour marker or biomarker, which is a substance that is found in greater concentration in tumor cells than in other cells of the body.
CA 125 is present in greater concentration in ovarian cancer cells than in other cells.
CA-125 is mostly used as a monitoring tool during treatment for ovarian cancer and to detect whether cancer has come back after treatment is complete.
CA-125 tests are sometimes used to test and monitor high-risk women who have a family history of ovarian cancer but who do not yet have the disease.
CA-125 is not a diagnostic test as it is non-specific. CA-125 levels in the blood can be elevated in other conditions such as normal menstruation, pregnancy, endometriosis, and pelvic inflammatory disease.
As cancer can have many signs or symptoms, we recommend that the tests are carried out in conjunction with one of our health screens such as a Well Person Check, Well Man Check or Well Woman Check.
Click here to see our range of health screens or click here for more cancer information.
This blood test has been designed to aid the identification of cancer in the bloodstream. It is a prevention test, the result of which does not in any way constitute a medical diagnosis and is not a replacement for recognised routine cancer tests such as mammography, colonoscopy / faecal occult blood testing, PAP smear / bimanual pelvic exam, or any physical exam. | 
Phlebotomy
