Lab marker · High

High CA-125: what it means

A CA-125 result above the normal range is considered high. Here is what a raised CA-125 can point to, and when it is worth discussing with a doctor.

Reference range: <35 U/mL; not a screening test in the general population

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What a high CA-125 can mean

  • Ovarian, fallopian-tube and primary peritoneal cancer — the established indications.
  • Benign gynaecological conditions — endometriosis, uterine fibroids, ovarian cysts, pelvic inflammatory disease.
  • Menstruation, pregnancy, recent pelvic surgery — physiological / iatrogenic.
  • Other cancers — lung, breast, pancreas, colon (less specific).
  • Cirrhosis, heart failure, peritonitis — non-specific elevations.

When to discuss with a doctor

If you have CA-125 ordered in the context of a known ovarian cancer or with concerning gynaecological symptoms (persistent bloating, abdominal pain, early satiety), the result belongs in conversation with your gynaecologist or oncologist. An incidentally elevated CA-125 in a woman without symptoms is far more likely to reflect a benign cause; Mediora.AI shows the value with the benign-vs-malignant context but cannot make this call alone.

Conditions this can relate to

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Mediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.