Glossary · Definition · v2026.3
Donor Egg IVF
A donor egg cycle uses oocytes provided by a third-party donor for IVF. Donor egg cycles bypass the intended parent's ovarian reserve and egg quality constraints. Success rates reflect the donor's age rather than the recipient's.
When Donor Eggs Are Used
Donor eggs are indicated when the intended parent's own eggs are insufficient in quantity or quality: diminished ovarian reserve, premature ovarian insufficiency, advanced reproductive age, or genetic conditions. Same-sex male couples and single men also require donor eggs. Donors are typically women aged 21 to 32 who undergo screening for medical, genetic, and psychological suitability.
Biological Constraints
Success rates with donor eggs are primarily determined by the donor's age and egg quality, not the recipient's age. This makes donor egg IVF a viable option for patients over 40 who would have very low success rates with own eggs. Legal agreements governing donor identity disclosure and parental rights vary by jurisdiction and must be established before the cycle.
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This content defines terminology for educational orientation. It does not constitute medical advice.
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