IVF success rates are the most important metric when choosing a fertility clinic — yet they’re also the most misunderstood. This guide explains what the numbers actually mean, compares success rates across Europe’s top destinations, and helps you ask the right questions.
Why IVF Success Rates Vary (and Why Comparisons Are Tricky)
Success rates are usually reported as “clinical pregnancy rate per transfer” or “live birth rate per cycle.” These sound similar but mean very different things.
Clinical pregnancy rate = heartbeat detected at 6–8 weeks. Higher, but doesn’t account for miscarriage.
Live birth rate = a baby is born. Lower, but the number that actually matters.
A clinic reporting 60% “pregnancy rates” may have a 35% live birth rate once miscarriages are accounted for. Always ask for live birth rate per embryo transfer, stratified by age.
Age is Everything
| Patient age | Average live birth rate per transfer (Europe) |
|---|---|
| Under 35 | 40–55% |
| 35–37 | 30–40% |
| 38–39 | 20–30% |
| 40–42 | 12–20% |
| Over 43 | 5–10% |
These are European averages. Top clinics often perform 5–10 percentage points above average.
Top European Destinations for IVF
Spain — The European Leader
Spain is the most popular IVF destination in Europe for international patients, and for good reason:
- Egg donation is legal, anonymous, and well-regulated (unlike UK where donors are known)
- Exceptionally large egg donor databases — donors are typically university-educated, 18–32 years old, well-screened
- High volume = extensive experience
- Strong regulatory oversight (ASEBIR quality standards)
Key clinics: Institut Marquès (Barcelona), IVI/IVIRMA (Valencia/Madrid), EUGIN (Barcelona/Madrid), Clínica Tambre (Madrid)
Average live birth rate (donor egg): 55–70% per transfer at top clinics
Average cost (own eggs, 1 cycle): €3,500–5,500
Average cost (donor eggs, 1 cycle): €6,500–9,500
Best for: Egg donation, older patients (40+), patients who’ve had multiple failures elsewhere.
Czech Republic — Quality at Lower Cost
The Czech Republic has built a strong reputation for IVF — particularly for patients from the UK, Germany, and Scandinavia. Prague clinics offer European standards at 30–50% below Western European prices.
Key clinics: Reprofit International (Brno), ISCARE (Prague), IVF Cube (Prague)
Average live birth rate (own eggs, under 35): 40–50%
Average cost (own eggs, 1 cycle): €2,200–3,500
Average cost (donor eggs, 1 cycle): €4,500–6,500
Best for: Budget-conscious patients; straightforward IVF under 38.
Greece — Emerging Destination
Greece has excellent fertility clinics, particularly in Athens and Thessaloniki. The legal framework is liberal — egg donation is permitted, sperm donation is permitted, and embryo donation is regulated.
Key clinics: Eugonia (Athens), Embryolab (Thessaloniki), Pelargos (Athens)
Average cost (donor eggs, 1 cycle): €5,500–8,000
Best for: Egg donation; patients wanting a combined medical and leisure trip.
Belgium — Research-Linked Excellence
Belgium has some of Europe’s best academic fertility centres (UZ Ghent, UZ Brussel). Less focused on medical tourism, but excellent for complex cases and patients willing to pay higher prices.
Average cost: Higher than Spain or Czech Republic; comparable to UK private.
Best for: Complex cases, genetic testing (PGT-A/PGT-M), patients needing clinical research expertise.
What Treatments Should You Ask About?
PGT-A (Preimplantation Genetic Testing for Aneuploidies)
Screens embryos for chromosomal abnormalities before transfer. Significantly improves success rates for women over 38 or those with recurrent miscarriage. Add €1,500–2,500 to cost.
Frozen Embryo Transfer (FET)
Transfer of a previously frozen embryo. Often has better success rates than fresh transfer as the uterine lining has more time to prepare. Many clinics now do “freeze-all” protocols.
ERA Test (Endometrial Receptivity Analysis)
A biopsy to determine the optimal timing for embryo transfer. Useful for patients with repeated implantation failure. Add €500–800.
ICSI (Intracytoplasmic Sperm Injection)
Used when male factor infertility is present. Standard at most clinics; usually included in cycle cost.
Questions to Ask Every Clinic
- What is your live birth rate per embryo transfer, by age group? (Not just “pregnancy rate”)
- How many cycles does your team perform per year? (High volume = more experience)
- What percentage of your patients are international? (Indicates experience with remote coordination)
- Do you have a dedicated coordinator for international patients?
- What is your policy if the cycle fails? (Refund guarantees, reduced-cost second cycles)
- Can I freeze surplus embryos for future cycles? (Annual storage cost: €300–600)
IVF Abroad: Practical Checklist
- Research 3–5 clinics; request detailed quotes
- Ask for success rates by age group in writing
- Book a remote consultation via video call before travelling
- Understand the timeline: typical IVF cycle is 4–6 weeks; you need 2 trips
- Check what monitoring can be done at your home clinic to reduce travel
- Confirm embryo storage and shipping policies if you want embryos sent home
- Inform your GP; coordinate with a UK fertility specialist for monitoring scans
Spain vs Czech Republic: Quick Decision Guide
Choose Spain if:
- You need egg donation
- You’re over 40
- You’ve had failures elsewhere and want maximum success rates
- Anonymous donation is important to you
Choose Czech Republic if:
- Under 38 with own eggs
- Budget is a primary concern
- You want shorter travel (easy EU access)
- Straightforward IVF with no donor requirement