IVF Success Rates in India: Age-Wise Data, What They Mean & How to Compare Clinics

IVF success rates: how to read them

> Note: this page deliberately quotes no success rate figures. Published national averages will not reflect your situation, and figures on clinic websites are frequently presented using denominators that flatter them. What follows is how to get numbers that mean something.

The denominator is everything

This is the single most important thing to understand about any IVF success rate.

Per embryo transfer — excludes every cycle that never reached transfer: cancelled cycles, cycles with no fertilisation, cycles where no embryo developed. Those outcomes rise with age, so this metric flatters results most for the patients who most need accurate information.

Per egg retrieval — includes cycles with no transfer, but excludes cancelled stimulations.

Per cycle started — the most conservative and the most honest from a patient's point of view.

Cumulative per retrieval — the fresh transfer plus all subsequent frozen transfers from that one egg collection. The most useful figure for planning, provided the denominator is stated.

ESHRE (2026) uses cumulative live birth rate per started cycle and live birth rate per started cycle as its critical efficacy outcomes. That is a reasonable standard to hold a clinic to.

Ask for this

"What is your live birth rate per cycle started, for women in my age band, over the last complete year?"

Not pregnancy rate — live birth. Not per transfer. Not the overall clinic figure.

Two further sources of non-comparability

Follow-up duration. Cumulative figures rise as more frozen embryos are used. A clinic reporting at 12 months and one reporting until embryos are exhausted are not comparable.

Case mix. Age distribution and diagnosis mix differ between clinics. A clinic treating younger patients with straightforward diagnoses will report better figures without being better.

What does predict outcome

Female age is a predictor of live birth — ESHRE grades this a strong recommendation.

AMH and antral follicle count are not. ESHRE explicitly does not recommend them for predicting pregnancy or live birth. They predict how you will respond to stimulation.

So a clinic quoting your AMH as a prognosis is over-reading it.

On laboratory quality

Note that the Vienna Consensus on laboratory performance indicators declined to adopt live birth rate as a laboratory indicator at all, on the grounds that too many non-laboratory variables affect it. Worth remembering when success rates are used to argue laboratory quality.

Better laboratory questions: fertilisation rate, blastocyst development rate per normally fertilised egg at 116 ± 2 hours, and cryosurvival rate.

The realistic framing

Most people need more than one cycle. Ask what a realistic plan looks like for you, and what it would cost across two or three attempts rather than one.