3 doctors weighed in:
How accurate is the ca-125 test for an ovarian cancer?
3 doctors weighed in

Dr. Dan Fisher
Internal Medicine
2 doctors agree
In brief: Not very.
Ca 125 is touted as a screening tool for ov ca but is elevated in only 50% of those with early stage disease.
Approx 1% of normals have a high ca 125. Since ovarian cancer is relatively uncommon, the ability of a positive test to predict ca is about 3%. There is general consensus that ca 125 is not a good screening tool for average risk females. Consider ca 125 for those with high risk.

In brief: Not very.
Ca 125 is touted as a screening tool for ov ca but is elevated in only 50% of those with early stage disease.
Approx 1% of normals have a high ca 125. Since ovarian cancer is relatively uncommon, the ability of a positive test to predict ca is about 3%. There is general consensus that ca 125 is not a good screening tool for average risk females. Consider ca 125 for those with high risk.
Dr. Dan Fisher
Dr. Dan Fisher
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