AMH (Anti-Müllerian Hormone / Ovarian Reserve)
Also known as: Anti-Mullerian Hormone, Ovarian Reserve Test, Egg Count Blood Test, Mullerian Inhibiting Substance (MIS)
Parameters Measured in the Report
A breakdown of individual biomarkers and biological reference intervals typically found in your report:
| Biomarker | Standard Range | Unit | What It Means |
|---|---|---|---|
Serum AMH (Anti-Müllerian Hormone) | Optimal Reserve: 1.5–4.0 Low Reserve: 1.0–1.5 Diminished: < 1.0 High / PCOS: > 4.5–5.0 | ng/mL (or pmol/L = ng/mL × 7.14) | Circulating marker directly proportional to the number of growing antral follicles in the ovaries. |
* Note: Reference ranges may vary slightly between testing instruments and reagent kits. Always refer to the reference interval printed on your specific pathology report.
Clinical Focus
Circulating concentration of dimeric glycoprotein hormone synthesized by granulosa cells of pre-antral and small antral ovarian follicles.
Sample & Specimen
Venous blood (Serum tube)
Fasting Protocol
No fasting required. Can be drawn on any day of the menstrual cycle.
Turnaround Time
24–48 hours
What Is This Test?
Why Did Your Doctor Order This Test?
Physicians routinely prescribe the AMH Test in the following clinical scenarios:
How to Prepare Before Your Test
- No fasting or cycle-day restriction is needed.
- Inform your doctor if you have been on oral birth control pills for years — long-term contraceptive pills can temporarily suppress AMH by 15% to 30%.
Understanding Your Results
What higher or lower readings generally mean in clinical practice:
If Values Are Higher Than Normal
A high AMH (>4.5–5.0 ng/mL) is characteristic of Polycystic Ovary Syndrome (PCOS), reflecting the accumulation of dozens of small arrested follicles. In IVF cycles, high AMH alerts reproductive endocrinologists to reduce stimulation medications to avoid dangerous Ovarian Hyperstimulation Syndrome (OHSS).
If Values Are Lower Than Normal
A low AMH (<1.0 ng/mL) indicates Diminished Ovarian Reserve (DOR), signaling that time is of the essence for biological conception or egg cryopreservation. (Note: AMH reflects egg *quantity*, not egg *quality* — women with low AMH can still conceive naturally).
Frequently Asked Questions
Does a low AMH level mean I cannot get pregnant naturally?
No! AMH reflects egg quantity (how many eggs are left), not egg quality. You only release one egg each month for natural conception. A woman in her 20s or early 30s with low AMH can have completely healthy, fertile eggs and conceive easily.
Can AMH levels be increased through diet or supplements?
Women are born with all the eggs they will ever have, so medical science cannot generate new eggs. However, treating severe Vitamin D deficiency or optimizing metabolic health can occasionally produce modest improvements in measured AMH.
Related Laboratory Tests
Tests frequently prescribed together or used as follow-up investigations:
FSH, LH & Prolactin (Fertility & Pituitary Panel)
Anterior pituitary hormones governing ovarian follicle development, ovulation, and lactation.
Serum Testosterone (Total & Free)
Primary androgen steroid hormone: Total testosterone (protein-bound) and Free testosterone (biologically active).
Thyroid Profile (TFT: TSH, Free T3, Free T4)
Thyroid Stimulating Hormone (TSH), Free Thyroxine (FT4), and Free Triiodothyronine (FT3).
Vitamin D3 (25-Hydroxy Vitamin D)
Total circulating concentration of 25-hydroxyvitamin D (D2 and D3 combined).
Medical & Diagnostic Disclaimer
This guide is published for educational and patient informational purposes only. It is not a substitute for professional medical evaluation, diagnosis, or clinical advice.
A laboratory result that falls slightly outside standard statistical reference intervals does not automatically indicate disease; conversely, a normal result does not guarantee the absence of medical conditions. Only your attending physician can interpret lab findings in the context of your medical history, physical exam, and symptoms.