Donor Egg, Sperm & Embryo Success Rate Explorer
Compare published live birth rates for donor egg IVF, donor sperm IUI and IVF, and donated embryo transfer using official registry data from the US (SART), UK (HFEA), Australia & New Zealand (ANZARD) and Europe (ESHRE). See how each rate is measured, what influences success, and which questions to ask your clinic.
Donor success explorer
Answer a few short questions to see the published registry figure for your treatment. Labels on each option show whether verified data is available before you choose.
Step 2 of 3
For donor eggs, the donor's age at egg retrieval is often more predictive than the recipient's age, although the recipient's health also matters.
Complete the steps above to see the result.
How to read the numbers
Live birth vs pregnancy
A clinical pregnancy is confirmed on a scan; a live birth is a baby born. Live birth rates are always lower and are the most meaningful measure.
Per cycle vs per transfer
Rates per embryo transfer exclude cycles that never reached transfer, so they look higher than rates per cycle started.
Why results differ
Countries report in different years, with different definitions, patient groups and treatment policies, so figures are rarely directly comparable.
What affects success
Egg age
The age of the person whose eggs are used is one of the strongest influences on outcomes.
Embryo stage
Blastocyst (day 5–6) and cleavage-stage (day 2–3) transfers are reported differently.
Recipient health
Uterine health, other medical conditions and lifestyle can all play a part.
Clinic practices
Lab quality, how embryos are selected and transfer policy vary between clinics.
Treatment method
IUI, fresh IVF and frozen transfer have different success profiles and denominators.
Global reference table
| Treatment | Region | Result | Source |
|---|---|---|---|
| Fresh donor eggs | USA | 38.5%live birth rate per recipient start | SART |
| Fresh donor eggs | UK | No comparable data yet | HFEA |
| Fresh donor eggs | Australia & New Zealand | No comparable data yet | ANZARD (NPESU, UNSW) |
| Fresh donor eggs | Europe (region-wide) | No comparable data yet | ESHRE EIM |
| Frozen donor eggs | USA | 37.9%live birth rate per recipient start | SART |
| Frozen donor eggs | UK | No comparable data yet | HFEA |
| Frozen donor eggs | Australia & New Zealand | No comparable data yet | ANZARD (NPESU, UNSW) |
| Frozen donor eggs | Europe (region-wide) | No comparable data yet | ESHRE EIM |
| Frozen embryos made with donor eggs | USA | 46.6%live birth rate per embryo thaw | SART |
| Frozen embryos made with donor eggs | UK | No comparable data yet | HFEA |
| Frozen embryos made with donor eggs | Australia & New Zealand | No comparable data yet | ANZARD (NPESU, UNSW) |
| Frozen embryos made with donor eggs | Europe (region-wide) | No comparable data yet | ESHRE EIM |
| IUI with donor sperm | USA | No comparable data yet | SART |
| IUI with donor sperm | UK | No comparable data yet | HFEA |
| IUI with donor sperm | Australia & New Zealand | No comparable data yet | ANZARD (NPESU, UNSW) |
| IUI with donor sperm | Europe (region-wide) | No comparable data yet | ESHRE EIM |
| IVF with donor sperm | USA | No comparable data yet | SART |
| IVF with donor sperm | UK | No comparable data yet | HFEA |
| IVF with donor sperm | Australia & New Zealand | No comparable data yet | ANZARD (NPESU, UNSW) |
| IVF with donor sperm | Europe (region-wide) | No comparable data yet | ESHRE EIM |
| Frozen embryo transfer (donated embryos) | USA | 43.6%live birth rate per embryo thaw | SART |
| Frozen embryo transfer (donated embryos) | UK | No comparable data yet | HFEA |
| Frozen embryo transfer (donated embryos) | Australia & New Zealand | No comparable data yet | ANZARD (NPESU, UNSW) |
| Frozen embryo transfer (donated embryos) | Europe (region-wide) | No comparable data yet | ESHRE EIM |
Plan your next steps
Questions to ask your clinic
- Which outcome measure is your quoted success rate based on: live births per start, insemination or transfer?
- What were your results for patients with my treatment characteristics and age group?
- How many cycles did not reach embryo transfer, and why?
- How are donors screened, matched and counselled?
- What are the legal, identity-release, storage and cross-border rules in this country?
- What are the full costs, including medication, donor fees, storage, tests and repeat attempts?
- What support is available for solo parents and for emotional wellbeing?
Sources: SART · HFEA · ANZARD (NPESU, UNSW) · ESHRE EIM. Last reviewed: 31 October 2026.
This page is for education only and is not medical advice. Please discuss your situation with a qualified fertility specialist.