What is an estradiol test, and what are normal estradiol levels?

What does the estradiol test measure?

Estrogens are a group of hormones central to puberty, menstruation, pregnancy and menopause, and they also matter for bone, muscle, cholesterol and brain health in both sexes. Estradiol is the form most often tested. MedlinePlus

Why is the estradiol test ordered?

• In females, to help look into early or late puberty, PCOS, infertility, perimenopause and certain tumors, and to monitor infertility treatment or menopause hormone therapy. MedlinePlus
• In males, to see whether too much estrogen is behind breast growth, infertility or erectile dysfunction. MedlinePlus

What are typical estradiol ranges?

ARUP Laboratories publishes estradiol by menstrual cycle phase, and offers a more sensitive method for low levels. ARUP Laboratories

Reference ranges differ between laboratories and testing methods, and many also differ by age, sex, pregnancy or the phase of the menstrual cycle. The range printed on your own report is the one that applies to your result, and a clinician interprets it alongside your history.

ARUP does not recommend its standard immunoassay when low estradiol is expected, as in men, children and postmenopausal women, and points to its mass spectrometry test instead. ARUP Laboratories

What can affect estradiol results?

• Levels change a lot in females, rising at puberty, peaking in pregnancy and falling after menopause, so more than one test may be needed to see a trend. MedlinePlus
• Birth control pills and menopause hormone therapy can affect results; do not stop them without your provider’s advice. MedlinePlus
• Biotin, often found in hair, skin and nail supplements, can interfere with some lab tests and cause incorrect results. Tell the person ordering the test if you take it. FDA

When should you talk to a clinician about a estradiol result?

• A healthy level depends on age, sex, the reason for testing, the type of estrogen measured and other results, so interpretation belongs with the clinician who ordered it. MedlinePlus

DiscoverMedica explains what a test measures and what named sources publish. It does not interpret individual results; the clinician who ordered your test, or one you choose, does.

Where can you get a estradiol test?

A clinician can order it as part of routine or follow-up care. Some services also let you order lab tests yourself; check that a service’s panel includes this marker, which laboratory runs it, and who reviews the result with you.

• Function HealthAnnual membership for broad lab panels, drawn at Quest sites or at home.
• Quest HealthOrder individual lab tests from Quest Diagnostics online, without a doctor’s visit.

Estradiol Test: questions, answered

Sources

1. MedlinePlus: Estrogen Levels Test
2. ARUP Laboratories: Estradiol (Adult Premenopausal Females) (test 0070045)
3. ARUP Laboratories: Estradiol by Mass Spectrometry (test 0093247)
4. FDA: Biotin Interference with Lab Tests

Last reviewed October 7, 2026. Every source above was checked on or before that date. Educational information only, not medical advice; it does not replace a conversation with a licensed clinician. DiscoverMedica does not employ clinicians.