CA 125 (Ovarian cancer marker)
CA 125 is a cell-surface protein on peritoneal and pelvic membranes, sensitive to ordinary gynecological physiological shifts.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
0 – 35 UI/mL
0 – 35 UI/mL
0 – 35 UI/mL
What does a low result mean?
A value below 35 UI/mL is the expected, reassuring benchmark.
What does a high result mean?
A modest increase is very frequent and benign during menstruation, ovulation, endometriosis, or benign ovarian cysts.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Could cycle timing, ovulation, or menses account for this result?
- Would a routine pelvic ultrasound provide helpful anatomical reassurance?
- Should this be rechecked outside of menstrual bleeding?
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Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.