Description
CA 125 is a blood marker used to support the assessment and monitoring of ovarian and certain other conditions, offering valuable information within a medically guided evaluation.
About the CA 125 (Ovarian) Test
This test measures CA 125, a protein that can be raised in ovarian cancer and in a number of benign gynaecological conditions such as endometriosis and fibroids. It is used mainly to support monitoring and follow-up rather than as a standalone screen, because levels can rise for non-cancerous reasons. Results are always interpreted by a doctor alongside symptoms, examination and, where appropriate, ultrasound.
Preparation and turnaround
A quick venous blood sample is taken with no fasting generally required. Results are usually available within two to three working days. Because CA 125 can be affected by common benign conditions, we recommend reviewing your result with a doctor who can advise on its meaning.
Frequently asked questions
Can CA 125 diagnose ovarian cancer on its own?
No. It supports assessment and monitoring but cannot diagnose cancer alone, as levels can rise with benign conditions. A doctor interprets it alongside other findings.
What benign conditions can raise CA 125?
Endometriosis, fibroids, menstruation and pelvic inflammation can all raise CA 125, which is why context matters.
Is fasting required?
No fasting is generally required for the CA 125 test.
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