January 19, 2026
Infertility Success Rates Explained: What You Need to Know
Infertility success rates vary by age, clinic protocols, and treatment methods. Women over 35 experience significant declines in IVF success due to egg quality. Shady Grove Fertility reports 40-60% live birth rates compared to 15% natural conception rates per month.
Key Takeaways
Age and Declining IVF Success Rates After 35
Female age is the single most important factor affecting infertility success rates. Women over 35 see rapid declines in pregnancy rates due to both reduced egg quality and increased miscarriage risk. At 40+, live birth rates drop below 15% even with optimal treatment.
Understanding Cycle Cancellation Rates in IVF
About 10-15% of initiated IVF cycles are cancelled before egg retrieval, primarily due to poor ovarian response to stimulation medications. Age is a major factor in determining whether a cycle will proceed to egg retrieval.
Why Live Birth Rates Matter More Than Clinical Pregnancy Rates
While clinical pregnancy rates measure initial success, ongoing pregnancy/live birth rates (accounting for miscarriage risk) are more meaningful. Top clinics focus on this 30-50% range metric to accurately reflect successful outcomes.
Embryo Transfer Strategies and Multiple Birth Risks
Transferring more embryos increases multiples risks but doesn’t significantly boost live birth chances. Leading clinics like Shady Grove Fertility use elective single embryo transfer (eSET) to balance safety and success rates effectively.
Donor Egg Success Rates by Recipient Age
Donor egg programs have consistent success rates across age groups (50-65%) since they use young donors’ eggs. This contrasts sharply with women using their own eggs, where success rates drop below 10% after age 43.
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