How serious is ovarian cancer? How do outcomes depend on the stage? What are the stages
For informational purposes only
This answer was generated by AI grounded in NCCN guidelines and published medical literature. It is not medical advice. Always consult your oncologist or care team before making treatment decisions.
I'll help explain ovarian cancer staging and outcomes, using trusted medical sources.
According to the National Cancer Institute (NCI) and the International Federation of Gynecology and Obstetrics (FIGO) staging system, ovarian cancer has four main stages:
Stage I: Cancer is limited to the ovaries
- IA: One ovary involved
- IB: Both ovaries involved
- IC: Cancer on ovary surface or capsule rupture
Stage II: Cancer has spread within the pelvis
- IIA: Spread to uterus/fallopian tubes
- IIB: Spread to other pelvic organs
Stage III: Cancer has spread to the abdomen
- IIIA: Microscopic spread
- IIIB: Visible tumors ≤ 2cm
- IIIC: Visible tumors > 2cm
Stage IV: Cancer has spread beyond the abdomen to distant organs
Regarding outcomes, according to the American Cancer Society's most recent statistics:
5-year survival rates:
- Stage I: 90%
- Stage II: 70%
- Stage III: 39%
- Stage IV: 17%
However, the National Comprehensive Cancer Network (NCCN) Guidelines emphasize that these statistics:
- Are based on past data and may not reflect newest treatments
- Are general averages and individual outcomes can vary significantly
- Don't account for personal factors like age, overall health, and specific tumor characteristics
The Society of Gynecologic Oncology (SGO) stresses that early detection significantly improves outcomes, which is why recognizing symptoms and getting prompt medical attention is crucial.
Always discuss your specific situation with your healthcare team, as they can provide the most accurate assessment based on your individual case.
This is general information.
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Source Guidelines
NCCN Guidelines for Patients: Ovarian Cancer (2026)Browse all NCCN Guidelines for Patients →Related Services
Services that may help with diagnosis for Ovarian Cancer patients
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