Anti-Müllerian Hormone (AMH) is the most reliable single indicator of ovarian reserve, how many eggs remain in your ovaries. AMH declines with age and reflects the biological reality of fertility, independent of cycle timing. It is the key measurement for any woman planning a family, considering IVF, or wanting to understand her reproductive timeline.
Women are born with all the eggs they will ever have, approximately 1–2 million primordial follicles at birth, declining to 300,000 at puberty and to zero at menopause. AMH is produced by the granulosa cells of growing follicles, its blood level directly reflects the size of the remaining follicle pool. It is currently the best single marker of ovarian reserve.
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What AMH Measures
AMH reflects the number of antral follicles available for recruitment in each cycle, the functional egg pool. Unlike FSH and LH, AMH is stable throughout the menstrual cycle, meaning it can be tested on any day without timing coordination. It declines steadily with age and with certain ovarian conditions.
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AMH and IVF Planning
AMH is the primary marker used by IVF specialists to predict ovarian response to stimulation. Low AMH predicts poor response, fewer eggs retrieved, lower success rates. High AMH (as in PCOS) predicts hyper-response, risk of ovarian hyperstimulation syndrome. AMH guides drug dosing and sets realistic expectations.
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Elevated AMH in PCOS
Women with PCOS typically have 2–4× higher AMH levels than age-matched controls, reflecting the large number of small antral follicles characteristic of the condition. Very high AMH (above 5–6 ng/mL) combined with irregular periods is strongly suggestive of PCOS even before ultrasound confirmation.
When to Test
Five Reasons to Get an AMH Test
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Fertility Planning: Understanding Your Reproductive Window
Women who want children but are not yet trying should know their ovarian reserve. AMH at 30 tells you whether your timeline is typical or whether you have fewer eggs than expected for your age, allowing informed decisions about when to start, whether to consider egg freezing, or when to seek fertility consultation.
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Difficulty Conceiving After 6–12 Months
After 6 months (age 35+) or 12 months (under 35) without conception, AMH is a first-line fertility investigation. Low AMH combined with elevated FSH indicates diminished ovarian reserve, one of the leading causes of unexplained infertility. Early identification allows IVF while reserve remains.
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Before IVF or Egg Freezing: Protocol Planning
AMH is mandatory before any IVF cycle. The result determines the ovarian stimulation protocol and expected egg retrieval number. Low AMH may indicate need for a more aggressive protocol; high AMH triggers a milder protocol to prevent hyperstimulation. AMH makes IVF safer and more effective.
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PCOS Evaluation
PCOS diagnosis is supported by elevated AMH alongside irregular periods, anovulation, and polycystic ovarian morphology on ultrasound. AMH in PCOS typically exceeds 5 ng/mL and often correlates with the degree of androgen excess and insulin resistance.
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After Ovarian Surgery, Chemotherapy, or Endometriosis
Ovarian cystectomy (especially for endometriomas), chemotherapy, and pelvic radiotherapy all damage the follicle pool. AMH before and after these treatments quantifies the impact on ovarian reserve, guiding decisions about egg banking before treatment or timing of conception attempts after.
AMH Reference Ranges by Age
Age 20–29
2.0–6.8 ng/mL
Age 30–35
1.5–4.0 ng/mL
Age 36–40
0.7–2.5 ng/mL
Low reserve (any age)
<1.0 ng/mL
⚕️ AMH reflects quantity of eggs, not quality. Egg quality declines with age independent of AMH. A normal AMH at 38 does not guarantee the same success rate as normal AMH at 28, age remains the dominant factor in egg quality.
Preparation
How to Prepare for Your AMH Test
AMH is one of the easiest fertility hormones to test, no cycle timing required.
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No Cycle Timing Required
Unlike FSH and LH, AMH is stable throughout the menstrual cycle, day 2, day 14, or day 28 all give the same result. You can test at any time without waiting for a specific cycle day. This makes AMH uniquely convenient compared to other fertility hormones.
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Note Any Hormonal Contraception
Oral contraceptive pills suppress AMH by 20–30%. If you are currently on the pill, your AMH result may underestimate your true ovarian reserve. This does not affect clinical utility significantly, but we should know so the result is interpreted in context. AMH returns to baseline 3 months after stopping the pill.
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Stop Biotin 48 Hours Before
High-dose biotin (Vitamin B7, common in hair/nail supplements) interferes with immunoassay-based hormone tests including AMH. Stop biotin supplements at least 48 hours before testing to prevent a falsely elevated or depressed result.
Why Choose Us
Trusted Fertility Testing in Akoka & Beyond
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Age-Specific Interpretation
An AMH of 1.5 ng/mL means something very different in a 28-year-old versus a 40-year-old. We interpret every result against age-specific reference ranges and explain what it means for your specific clinical situation, not just whether the number is "normal" in isolation.
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Test Any Day: No Scheduling Complexity
Because AMH is cycle-stable, we can test it on whatever day you come in, no waiting for your period, no coordinating cycle days. One less barrier to getting this important fertility information.
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Full Fertility Panel Available
AMH alone is valuable, but the full fertility picture includes FSH, LH, estradiol, and prolactin (on days 2–4) plus progesterone (day 21). We can coordinate a comprehensive fertility workup across two visits aligned to your cycle.
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Completely Confidential
Fertility concerns are deeply personal. Your AMH result and everything discussed with our team is held in strict confidence, shared with no one without your explicit consent.
"I was 33 and not yet trying, but worried about waiting too long. My AMH came back at 1.1 ng/mL, below average for my age. That result prompted me to see a fertility specialist sooner than I'd planned. I now have a daughter. Without knowing my AMH I might have waited two more years."
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When are you open?
Monday to Saturday, 9 AM to 5 PM. We are closed on Sundays and Nigerian public holidays.
How should I prepare?
See our test and scan preparation guide. Good to know for this test: No cycle timing needed; 24–48h results. If you are unsure, message us on WhatsApp before you come.
Can I come here in an emergency?
No. We don't handle emergencies. For chest pain, difficulty breathing, signs of a stroke, heavy bleeding or any other emergency, go to the nearest hospital or call 112.
Do you accept HMO or health insurance?
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