CA 125 Tumor Marker: What Does the Result Mean?

CA 125 Tumor Marker Test is a tool to monitor treatment for ovarian cancer and detect recurrence. It is sometimes used to help detect early ovarian cancer in high-risk cases, or evaluate a lump located in the pelvic area (pelvic mass).

Normal Results:

0 to 35 U/mL.

What Does the Result Mean?

  • A decreased CA-125 level indicates that the cancer is responding to treatment.
  • A similar or increased CA-125 level indicates that the cancer may not be responding to therapy.
  • A high CA-125 level after treatment is complete may indicate that the cancer has come back.
  • A baseline CA-125 level that is normal, is not useful, when the person is a woman who has been diagnosed with ovarian cancer. Follow-up exams are needed.
  • A significantly elevated CA-125 level indicates that there may be ovarian cancer, when the person is a woman with a pelvic mass or a high risk of developing ovarian cancer.

 

Keywords: CA 125 Tumor Marker, CA-125, Cancer Antigen 125

* The contents of this HTQ Site are for informational and communicational purposes only. The information provided by HTQ, HTQ employees, others appearing on the Site at the invitation of HTQ, or other visitors to the Site is NOT a medical advice.The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on the HTQ Site!