CA-125 (Ovarian Cancer)
CA-125 is a glycoprotein expressed by many ovarian cancers and is used to monitor treatment response and detect recurrence. It is not reliable for general screening because it is elevated in benign conditions such as endometriosis, fibroids, pelvic inflammatory disease, and menstruation, and is also a nonspecific marker in some other cancers. Trends over time carry more weight than single values.
2 providers include this
Cancer Screening Markers
fibroids
What is CA-125 (Ovarian Cancer)?
CA-125 is a glycoprotein expressed by many ovarian cancers and is used to monitor treatment response and detect recurrence. It is not reliable for general screening because it is elevated in benign conditions such as endometriosis, fibroids, pelvic inflammatory disease, and menstruation, and is also a nonspecific marker in some other cancers. Trends over time carry more weight than single values.
Why It Matters
Elevated in ovarian cancer but also in benign conditions like endometriosis, fibroids, and menstruation. Used for monitoring treatment response rather than screening.
Which Providers Test CA-125 (Ovarian Cancer)?
Full Provider Comparison
| Provider | Includes | Annual Cost | Biomarkers |
|---|---|---|---|
 Superpower | — | $199 | 100+ (150 with ratios) |
 WHOOP Advanced Labs | — | $349 | 65 |
 Labcorp OnDemand | — | $398 | 40+ |
| — | $486 | 40+ | |
| — | $449 | 288 | |
| ✓ | $349 | 100+ | |
| — | $829 | 54 | |
 Function Health | ✓ | $365 | 160+ |
| — | $250 | 65 | |
| — | $495 | 80+ | |
| — | $895 | 100+ | |
| — | $1950 | 130+ | |
| — | $375 | 95+ | |
| — | $Varies | 75+ | |
| — | $190 | 100+ | |
| — | $99 | 50 | |
| — | $124 | 60 | |
| — | $349 | 130+ | |
| — | $349 | 80+ | |
| — | $375 | 85 | |
| — | $700 | 128 | |
| — | $99 | 100+ |
Frequently Asked Questions
What is CA-125 (Ovarian Cancer)?
CA-125 is a glycoprotein expressed by many ovarian cancers and is used to monitor treatment response and detect recurrence. It is not reliable for general screening because it is elevated in benign conditions such as endometriosis, fibroids, pelvic inflammatory disease, and menstruation, and is also a nonspecific marker in some other cancers. Trends over time carry more weight than single values.
What is the optimal range for CA-125 (Ovarian Cancer)?
The standard reference range for CA-125 (Ovarian Cancer) is fibroids. Optimal ranges may differ based on individual health goals and expert recommendations.
Which blood test providers include CA-125 (Ovarian Cancer)?
2 out of 22 blood testing providers include CA-125 (Ovarian Cancer) in their panels. This biomarker has limited availability.
What category does CA-125 (Ovarian Cancer) fall under?
CA-125 (Ovarian Cancer) is categorized under Cancer Screening Markers. This category includes biomarkers that help assess related aspects of health and wellness.
Medical Disclaimer
This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.
Last reviewed:2026-04-12