Science · Ovarian biology
Ovarian Science
A careful view of ovarian reserve, follicular response and the boundaries of current evidence.
Clinical context
What ovarian markers can—and cannot—tell us
Ovarian reserve describes the remaining follicular pool and the expected response to stimulation; it is not a direct measure of egg quality or the chance of a live birth. Anti-Müllerian hormone (AMH) and antral follicle count (AFC) can help anticipate a low or high response and support planning.Interpretation belongs within a complete clinical assessment that also considers age, history, diagnosis, previous treatment, sperm factors, uterine health and embryology. A single laboratory value should not be used as a stand-alone “fertility test”.
Three perspectives
From measurement to responsible interpretation
01
Reserve and response
AMH and AFC are useful predictors of oocyte yield during stimulation. They are substantially less informative when used alone to predict pregnancy or live birth.02
Individualised planning
Protocols are selected in context. The aim is a proportionate response and safe care—not the pursuit of one universal number or dose.03
Biology under study
Follicular signalling, the ovarian microenvironment and age-related cellular change remain active research areas. Biological plausibility is not the same as proven clinical benefit.Evidence boundary
Experimental approaches require clear language
Procedures presented as ovarian “rejuvenation”, including intraovarian platelet-rich plasma (PRP), do not currently have sufficient high-quality evidence for routine clinical use. ESHRE’s add-ons recommendations do not recommend intraovarian PRP outside an appropriate research context.
- No guarantee of oocyte production, embryo development, pregnancy or live birth.
- No single ovarian marker defines treatment eligibility or reproductive potential.
- Research participation and clinical care require separate, transparent consent.
Research pathway
Questions before claims
Our ovarian research pages describe the study framework and the questions being examined. They do not present undocumented outcomes or imply that an investigational approach is established treatment.Evidence base
Guidelines informing this page
- ASRM Committee Opinion: Testing and interpreting measures of ovarian reserveAMH and AFC predict ovarian response more reliably than reproductive outcome.
- ESHRE Guideline: Ovarian Stimulation for IVF/ICSI (2025 update)Evidence-based recommendations on assessment and ovarian stimulation.
- ESHRE Good Practice Recommendations on add-ons in reproductive medicine (2023)Professional guidance on the evidence and safety requirements for reproductive add-ons.
Educational information only. This page does not provide a diagnosis, recommend a treatment, determine eligibility or replace consultation with a qualified clinician.
