Information about a laboratory test

High AMH: What Does It Mean?

High AMH may be associated with a larger follicle pool and can occur in PCOS; AMH alone does not diagnose PCOS.

Test summary

Test name
AMH
Abbreviations
AMH
Category
Endocrinology / Reproductive
Panel
Ovarian Reserve / Reproductive Hormones
Specimen
Serum / plasma
Common units
ng/mL, pmol/L

What does the test measure?

Measures AMH, which in females is produced by ovarian follicles; AMH has different biological roles in males during development.

Why is the test ordered?

Most often used to provide information about ovarian reserve and fertility-treatment planning, with additional pediatric and endocrine uses.

Information about a low result

Low AMH can be expected with age and may support reduced ovarian reserve; it cannot by itself predict natural conception or the exact timing of menopause.

Information about a high result

High AMH may be associated with a larger follicle pool and can occur in PCOS; AMH alone does not diagnose PCOS.

Reference and clinical context

Use the reference interval printed on your own laboratory report first. Hormone results may vary with the assay, age, sex, pregnancy, menstrual-cycle phase, and sampling time.

Reference ranges may vary by laboratory, method used, age, sex, pregnancy status, and clinical context. The reference range on your own laboratory report takes precedence.

Interpretation notes

AMH is strongly age-dependent. Age-specific laboratory intervals and assay method should be considered when discussing a 'normal' result.

Related specialties

  • Obstetrics and Gynecology
  • Reproductive Endocrinology and Infertility
  • Endocrinology
  • Pediatric Endocrinology

Frequently asked questions

Sources

  1. Follicle-Stimulating Hormone (FSH) Levels Test — U.S. National Library of Medicine (MedlinePlus)

    Government medical reference · 2023 · FSH use with LH, estrogen, testosterone and progesterone · Verified: Aug 11, 2026

  2. Estrogen Levels Test — U.S. National Library of Medicine (MedlinePlus)

    Government medical reference · 2025 · Estrogen testing across fertility, pregnancy, bone health and menopause · Verified: Aug 11, 2026

  3. Anti-Müllerian Hormone Test — U.S. National Library of Medicine (MedlinePlus)

    Government medical reference · 2023 · AMH, ovarian reserve, age dependence and limitations · Verified: Aug 11, 2026