What is Ovarian Reserve?
💡 Ovarian reserve = remaining egg pool quantity + functional potential. Assessed by: AMH (most reliable, cycle-independent), AFC on Day 2–3 ultrasound, Day 3 FSH. Normal AMH: 1.5–4.0 ng/mL (age 30–35); diminished: <1.0 ng/mL. Declines with age, surgery, endometriosis, or chemotherapy.
Ovarian reserve refers to the quantity and functional potential of a woman's remaining egg pool — the primordial follicles stored in both ovaries. It determines reproductive lifespan and IVF stimulation response, and is assessed using AMH, antral follicle count (AFC), and Day 3 FSH.
🇮🇳 India Context: Ovarian Reserve is widely assessed and treated across major Indian fertility centres including Chennai, Mumbai, Bangalore, Delhi, and Hyderabad.
What are the key characteristics of Ovarian Reserve?
- Reflects the total number of remaining primordial follicles in both ovaries — the finite non-renewable egg supply
- Three complementary markers: AMH (blood, cycle-independent), AFC (Day 2–3 TVS), Day 3 FSH/estradiol (blood)
- AMH is the most reliable single marker: correlates with antral follicle count; predicts IVF egg yield most accurately
- Normal AMH ranges: >4.0 ng/mL (high/PCOS risk); 1.5–4.0 ng/mL (normal); 1.0–1.5 ng/mL (borderline); <1.0 ng/mL (low); <0.4 ng/mL (very low)
- Day 3 FSH: elevated FSH (>10 IU/L) indicates reduced reserve — pituitary working harder to recruit follicles
- AFC: total antral follicles (2–10mm) visible on both ovaries — normal 8–15; poor response predicted <5–6
- Premature decline caused by: ovarian surgery (cystectomy), endometrioma, chemotherapy/radiation, Turner syndrome, FMR1 premutation
- Low reserve ≠ zero chance of pregnancy — particularly in younger women where egg quality remains good
How does Ovarian Reserve work?
Why does Ovarian Reserve matter in fertility?
Ovarian reserve testing is the most important baseline investigation for all women over 35 planning pregnancy or IVF. AMH predicts how many eggs a woman will produce in a stimulated cycle — directly determining the number of embryos available for selection and freezing. Low reserve does not automatically mean IVF will fail — in women under 38, even 1–3 good embryos from a low-yield cycle can result in pregnancy. Reserve testing also identifies women who should not delay fertility treatment: a 32-year-old with AMH <0.5 ng/mL has the reserve of a typical 42-year-old and should act urgently. In India, AMH testing is available at most fertility clinics for ₹800–₹2,500.
What are related terms to Ovarian Reserve?
AMH Test (Anti-Müllerian Hormone)
The AMH Test is a simple blood test that measures the level of Anti-Müllerian Ho…
Antral Follicle Count (AFC)
Antral Follicle Count (AFC) is a transvaginal ultrasound test. It is done early …
Low Ovarian Reserve (Diminished Ovarian Reserve)
Low Ovarian Reserve means a woman has fewer eggs than expected for her age. It i…
FSH (Follicle-Stimulating Hormone)
FSH (Follicle-Stimulating Hormone) is produced by the pituitary gland. In women,…
Egg Quality
Egg quality refers to the developmental competence and chromosomal normality of …
FAQs about Ovarian Reserve
What does low ovarian reserve mean?
Low ovarian reserve means the remaining egg pool is smaller than expected for age — measured as AMH <1.0 ng/mL and/or AFC <5–6. It predicts reduced egg yield in IVF (fewer eggs retrieved) but does not determine egg quality, which is primarily age-dependent. A young woman with low AMH can still conceive with her own eggs.
What is the best test for ovarian reserve?
AMH (anti-Müllerian hormone) is the most reliable single marker — cycle-independent, stable across the month, and most predictive of IVF egg yield. Combined with AFC (antral follicle count on Day 2–3 TVS), the two tests together give the most complete picture. Day 3 FSH is less reliable as a standalone test.
Can you get pregnant with low ovarian reserve?
Yes — especially in younger women. Low AMH predicts fewer eggs per IVF cycle, not zero. Many women with AMH 0.3–1.0 ng/mL achieve pregnancy with modified IVF protocols. In women under 35, even 1–2 good-quality embryos can result in live birth. Age remains the primary determinant of egg quality, not AMH level.
What causes premature low ovarian reserve?
Premature decline in women under 35 caused by: ovarian cystectomy or surgery (most common — even careful surgery reduces reserve), endometrioma (endometriosis on the ovary directly destroys follicles), chemotherapy or radiation, Turner syndrome (45,X), FMR1 premutation (fragile X carrier), and idiopathic (unknown cause, ~30–40% of cases).
What is the normal AMH level for fertility?
AMH normal ranges: >4.0 ng/mL = high (PCOS territory, OHSS risk); 1.5–4.0 ng/mL = normal; 1.0–1.5 ng/mL = borderline; <1.0 ng/mL = low; <0.4 ng/mL = very low. Context is critical: a 38-year-old with AMH 1.2 ng/mL has age-appropriate reserve; a 29-year-old with AMH 1.2 ng/mL should be investigated urgently.
🏥 Find Specialists for Ovarian Reserve in India
Connect with verified fertility specialists who can guide you through ovarian reserve.