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Doctor insights on: Ca 125 False Positive

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Hi, I'm 48 yo, have endometriosis, ovarian cysts, uterine fibroids, pre-menopausal. CA 125 was around 200's then 159 the last one was 210 any concerns?

Hi, I'm 48 yo, have endometriosis, ovarian cysts, uterine fibroids, pre-menopausal. CA 125 was around 200's then 159 the last one was 210 any concerns?

Likely, no: CA 125 is not recommended as a screening tool for ovarian cancer when used in risk-based stratification. Meaning, assuming that your mom or sister didn't get diagnosed with ovarian cancer. Normal for women with endometriosis to have elevated CA-125. It sounds like your doctor has done Ultrasound to evaluate ovaries as well. Your MD knows your history and risk, likely this CA-125 level is normal ...Read more

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Dr. James Lin
125 doctors shared insights

Ca125 (Definition)

Ca-125 (cancer antigen 125 or carbohydrate antigen 125) is a biomarker/tumor marker for ovarian cancer (etc); however, it is not sensitive or specific enough to use as a screening test. Also, a uk study showed that treating based on ca125 level did not improve outcomes. "125" comes from the 125th attempt to develop a marker. It was introduced by bast ...Read more


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Urinalysis with positive ca125. What does this mean?

Urinalysis with positive ca125. What does this mean?

Not sure: Ca 125 is used to follow response of ovarian cancer to treatment, it is not considered a good screening test for the general population (too many false positives) but is used to screen patients that cary a deleterious brca mutation. Urine ca125 is not routinely done but very elevated levels may be significant; but it doesnt correnlate with serum (http://www.Ncbi.Nlm.Nih.Gov/pubmed/7944239#). ...Read more

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My ca-125 is positive.What does it mean? My right ovary forms cyst in ipotesi.

My ca-125 is positive.What does it mean? My right ovary forms cyst in ipotesi.

What's positive?: How high is it? Ca125 is not a test used to diagnose ovarian cancer but to follow its response to therapy. Many things, malignant or not, can make it go up. You are young for ovarian cancer but i would advise you follow up with your doctor and have a good chat about the implications of the test results. Ciao! ...Read more

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Where does ca125 originate?

In the peritoneal li: It arises from the irritation or growth of peritoneal lining cells. These cells also cover the ovaries. So ca 125 is often used as a test to screening for ovarian cancer. But it often raised in any conditions causing intra -abdominal irritation like in peritonitis. ...Read more

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What is the definition or description of: ca125?

What is the definition or description of: ca125?

CA125 Definition: Ca-125 (cancer antigen 125 or carbohydrate antigen 125) is a biomarker/tumor marker for ovarian cancer (etc); however, it is not sensitive or specific enough to use as a screening test. Also, a uk study showed that treating based on ca125 level did not improve outcomes. "125" comes from the 125th attempt to develop a marker. It was introduced by bast et al. In 1983. ...Read more

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How concerned should I be if my ca125 level was not ordered this year?

How concerned should I be if my ca125 level was not ordered this year?

None to minimal: If the ca-125 was going to be used simply as another blood test for example in a yearly physical, you should not be terribly concerned at all. My answer is different however, if you have a history of a disease such as ovarian cancer and that it should be checked. I also might order it if you have a strong family history of ovarian cancer for example. If not you should not be concerned. ...Read more

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Is 80.04 result of my ca 125 can be cured?

Cannot tell: More information is needed to recommend possibility of cure. Please re-ask the question with what diagnosis included and any previous treatment. ...Read more

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I'm concerned about high ca 125? What should I do?

Incomplete info: Why did you have the test done? All lab results need to be interpreted in the clinical context and the doctor who ordered the test is usually in the best position to do that. Ca 125 is not a good test to diagnose a primary illness. ...Read more

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Can Lyme disease cause an elevated CA125 reading?

Unknown: At this point in time there is a lot of discussion about this topic and many who feel there may be some association but there has been no known proof of an association of Lyme disease and an elevated CA 125. This is still being researched and nothing that can say a definite cause and affect. Hope this helps. ...Read more