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CA125 (Cancer Antigen 125)

A CA125 (Cancer Antigen 125) test measures the amount of protein CA125 (Cancer Antigen 125) in blood. It is a tumor marker used to monitor certain cancers (particularly ovarian cancer) during and after therapy. In some high-risk individuals, the test may be us...

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For men & women18 hoursBloodHome collection

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A CA125 (Cancer Antigen 125) test measures the amount of protein CA125 (Cancer Antigen 125) in blood. It is a tumor marker used to monitor certain cancers (particularly ovarian cancer) during and after therapy. In some high-risk individuals, the test...

Understanding CA125 (Cancer Antigen 125)

CA125 is a protein found on the surface of ovaries, fallopian tubes, and body linings. High levels of CA125 in the blood might indicate ovarian cancer or other cancers like cervical, liver, pancreatic, lung, colon, stomach, biliary tract, uterine, fallopian tube, breast, and endometrial cancers. However, raised CA125 levels can also be caused by non-cancerous conditions such as menstruation, endometriosis, ovarian cysts, and pregnancy.

Your doctor may recommend this test if you experience symptoms suggestive of ov...

What does CA125 (Cancer Antigen 125) measure?

A CA125 (Cancer Antigen 125) test measures the amount of protein CA125 (Cancer Antigen 125) in blood. It is a tumor marker used to monitor certain cancers (particularly ovarian cancer) during and after therapy. In some high-risk individuals, the test may be used to look for early signs of an ovarian tumor. Serial measurements help to detect cancer recurrence and predict response to therapy. This test is not considered useful for cancer detection screening in the normal population.

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3

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4

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