What is a normal estradiol level for men?

The normal estradiol range for adult men is approximately 10–40 pg/mL (37–147 pmol/L). Many clinicians focused on men's hormonal health consider 20–30 pg/mL to be the functional sweet spot, though optimal ranges vary by individual. Men on testosterone replacement therapy are typically monitored with the ultrasensitive LC/MS assay rather than the standard immunoassay.

What does low estradiol in men mean?

Low estradiol in men — typically below 10–15 pg/mL (37–55 pmol/L) — is associated with joint pain, low libido, erectile dysfunction, fatigue, mood disturbances, and reduced bone density. The most common cause in men is use of aromatase inhibitors as part of testosterone therapy. Low estradiol not related to medication almost always reflects low testosterone, since estradiol is produced by converting testosterone via the aromatase enzyme.

What does high estradiol in men mean?

High estradiol in men — above approximately 40 pg/mL (147 pmol/L) — is most often caused by excess body fat, which is rich in aromatase enzyme and converts testosterone to estradiol. Men on testosterone replacement therapy can also develop high estradiol if not monitored carefully. Symptoms include gynecomastia (breast tissue), water retention, low libido, and mood changes. Treatment focuses on the root cause — typically weight loss, TRT dose adjustment, or judicious use of an aromatase inhibitor under physician supervision.

What are normal estradiol levels in women by menstrual phase?

Estradiol fluctuates dramatically across the cycle. In the follicular phase (days 1–13), levels typically range from 19–144 pg/mL (70–529 pmol/L). At ovulation, levels surge to 64–357 pg/mL (235–1311 pmol/L). During the luteal phase (days 15–28), they range from 56–214 pg/mL (206–786 pmol/L). These ranges vary between labs. When interpreting your result, the cycle day it was drawn matters as much as the number itself.

What is a normal estradiol level after menopause?

In postmenopausal women not taking hormone replacement therapy, estradiol is typically below 10–20 pg/mL (37–73 pmol/L). Women on HRT should have levels monitored to a target set by their clinician, generally 50–100 pg/mL (184–367 pmol/L) for standard systemic therapy, though optimal HRT targets vary by formulation and individual response.

What does high estradiol mean in postmenopausal women?

Elevated estradiol in a postmenopausal woman not on HRT — generally above 20–30 pg/mL (73–110 pmol/L) — warrants evaluation. The most common cause is obesity, since fat tissue continues to convert androgens to estrogens via aromatase after the ovaries stop producing estradiol. Less commonly, elevated postmenopausal estradiol can indicate an estrogen-secreting ovarian or adrenal tumor, liver disease, or inadvertent exposure to estrogen-containing products. This finding should be discussed with a physician.

What is the difference between estradiol ultrasensitive LC/MS and standard estradiol?

Both tests measure estradiol (E2), but they use different analytical methods. The standard immunoassay is accurate for the higher levels typical in premenopausal women but loses precision at low concentrations due to cross-reactivity with other steroids. The ultrasensitive LC/MS (liquid chromatography-mass spectrometry) assay is far more accurate at low concentrations, making it the preferred test for men, postmenopausal women, and children. If your result is labeled "ultrasensitive" or "LC/MS," you are simply receiving a more precise measurement — the clinical reference ranges and interpretation remain the same.

How do I convert estradiol from pmol/L to pg/mL?

To convert: divide pmol/L by 3.671 to get pg/mL. To go the other direction, multiply pg/mL by 3.671 to get pmol/L. For example, 88 pmol/L ÷ 3.671 = approximately 24 pg/mL — a low-normal result for a man. The unit your lab uses does not change the clinical meaning of the result, but you must use matching units when comparing your number to a reference range.

What does "estradiol less than 24" or "<24" mean?

This is a reporting convention used by some laboratories (including LabCorp) to indicate that the estradiol result was below the lower limit of the assay's reliable detection range — in this case, below 24 pg/mL (approximately 88 pmol/L). It does not mean the result is exactly 24, nor that estradiol is zero. For men, this is often a normal or low-normal result. For men on aromatase inhibitors, it may indicate estradiol has been suppressed too far. For premenopausal women, it would suggest very low estradiol warranting further evaluation.

What does estradiol sensitive mean on a lab result?

"Estradiol, Sensitive" or "Sensitive Estradiol" is another name for the ultrasensitive or LC/MS estradiol assay. It means the test was performed using a high-precision method designed to accurately detect low estradiol concentrations. This is the appropriate test for men and postmenopausal women. The numerical result and reference ranges are interpreted the same way as for other estradiol tests.

What does it mean if estradiol is high in women?

Whether a high estradiol result is meaningful depends on the timing. In a premenopausal woman, estradiol naturally peaks at ovulation — a result of 200–350 pg/mL mid-cycle is entirely normal. If estradiol is consistently elevated in the early follicular phase or in a postmenopausal woman not on HRT, possible causes include obesity, ovarian cysts, PCOS, endometriosis, certain medications, or — rarely — an estrogen-secreting tumor. Symptoms of persistently high estradiol in women include irregular periods, breast tenderness, bloating, and mood changes.

What does it mean if estradiol is low in women?

Low estradiol in premenopausal women can indicate hypothalamic suppression (from extreme exercise, very low body weight, or chronic stress), premature ovarian insufficiency, hyperprolactinemia, or pituitary dysfunction. It is associated with irregular or absent periods, hot flashes, vaginal dryness, bone loss, and low libido. After menopause, low estradiol is expected and normal. Evaluation of low estradiol in reproductive-age women typically involves FSH and LH testing to determine whether the problem is at the level of the ovary or the hypothalamic-pituitary axis.

What is the difference between estradiol and estrogen?

Estrogen is the collective term for a class of hormones including estradiol (E2), estrone (E1), and estriol (E3). Estradiol is the most potent and most abundant estrogen in non-pregnant adults, and the one measured in standard blood testing. When your doctor or lab report refers to an "estradiol test," they are measuring E2 specifically — not total estrogen.

What other tests are usually ordered with estradiol?

Estradiol is most informative when interpreted alongside related hormone markers. In women, FSH and LH are often ordered together to assess ovarian function and menopausal status. Progesterone is useful for assessing luteal phase adequacy. In men, total testosterone, free testosterone, LH, FSH, and SHBG provide a complete picture of hormonal balance. Prolactin is sometimes added when low estradiol is found in a premenopausal woman to exclude hyperprolactinemia as a cause.

Estradiol (E2) Blood Test: Normal Ranges, High & Low Results Explained

Serum

Other names: Oestradiol, Estradiol, Serum, MS, ESTRADIOL, LC/MS, ESTRADIOL (E2)

Optimal Result: 45.4 - 1461 pmol/L, or 12.37 - 397.98 pg/mL.

Endocrinology

From Healthmatters.io Team and reviewed by HM Editorial Team

Written on April 12, 2026 | Last updated Updated on April 28, 2026

Lab Results Explained and Tracked

Estradiol (E2) is the most potent and clinically measured form of estrogen. It is produced primarily in the ovaries in women, in small amounts by the testes in men, and in fat tissue in both sexes. Estradiol drives reproductive development, regulates the menstrual cycle, supports bone density, influences mood and cognition, and affects cardiovascular health.

An estradiol blood test measures the E2 concentration in your serum. Results are reported in either pg/mL (picograms per milliliter) or pmol/L (picomoles per liter) — the two units measure the same thing. See the conversion section below if your result uses a different unit from your reference range.

Estradiol reference ranges — quick answer

Is my result normal?

Group	Likely low	Typical optimal	Likely elevated
Men	<15 pg/mL (<55 pmol/L)	20–30 pg/mL (73–110 pmol/L)	>40 pg/mL (>147 pmol/L)
Women (cycling)	<19 pg/mL (<70 pmol/L)	Varies by cycle phase*	Context-dependent*
Postmenopausal (no HRT)	—	<20 pg/mL (<73 pmol/L)	>30 pg/mL (>110 pmol/L)

*For cycling women, the phase when blood was drawn matters as much as the number. See the full table below.

Population	pg/mL	pmol/L
Men (adult)	10–40 pg/mL	37–147 pmol/L
Women — Follicular phase	19–144 pg/mL	70–529 pmol/L
Women — Ovulatory peak	64–357 pg/mL	235–1311 pmol/L
Women — Luteal phase	56–214 pg/mL	206–786 pmol/L
Women — Postmenopausal (no HRT)	<10–20 pg/mL	<37–73 pmol/L
Women — Postmenopausal (on HRT)	50–100 pg/mL	184–367 pmol/L

These are general reference ranges. Lab-specific ranges (LabCorp, Quest, etc.) may differ slightly. Your lab report's printed reference range takes precedence.

What is estradiol and why is it tested?

Estradiol is one of three naturally occurring estrogens — alongside estrone (E1) and estriol (E3). E2 is the most biologically active of the three and the primary form measured in routine blood testing for non-pregnant adults.

In women, estradiol is lowest in the early follicular phase, surges sharply before ovulation, and remains moderately elevated during the luteal phase before dropping at menstruation. After menopause, ovarian production ceases and levels fall to very low values.

In men, estradiol is produced primarily by the aromatization of testosterone in fat tissue, the liver, and the adrenal glands. Men require a precise amount for bone health, libido, erectile function, and cardiovascular protection — too little or too much each causes distinct symptoms.

Estradiol testing is ordered to evaluate fertility, menstrual irregularities, menopausal status, bone density concerns, hormonal imbalance in men, and to monitor hormone replacement therapy.

Estradiol in men — normal range, low and high results

Estradiol is not just a female hormone. Men produce and require it throughout their lives, and both low and high estradiol cause significant symptoms. Testing is most common in men investigating low libido, erectile dysfunction, bone loss, infertility, or gynecomastia (breast tissue development).

Normal estradiol levels in men

Most laboratories report the male reference range as approximately 10–40 pg/mL (37–147 pmol/L). Some labs use a slightly narrower or wider range. Optimal functional levels for most adult men are often cited in the 20–30 pg/mL range by clinicians focused on hormonal health, though this varies by individual and clinical context.

Men being monitored on testosterone replacement therapy (TRT) are typically tested with the ultrasensitive estradiol (LC/MS) assay rather than the standard immunoassay, because the standard assay is less accurate at the lower concentrations relevant to men. See the ultrasensitive section below for more detail.

Low estradiol in men

Low estradiol in men (generally below 10–15 pg/mL, or below roughly 37–55 pmol/L) is associated with a recognizable cluster of symptoms and health risks. It is most commonly seen in men on testosterone replacement therapy where estradiol is being over-suppressed by aromatase inhibitors, in men with primary hypogonadism, and in men with very low body fat.

Low estradiol is strongly associated with reduced bone mineral density and increased fracture risk. Research has established that estradiol — not testosterone — is the dominant hormone protecting male bone mass. Men with chronically low estradiol lose bone at a rate comparable to postmenopausal women, and this risk is often underappreciated in clinical practice.

Symptoms of low estradiol in men include:

Low libido and reduced sexual interest
Erectile dysfunction
Joint pain and stiffness
Fatigue and low energy
Reduced bone density (increased fracture risk over time)
Mood changes, irritability, or depression
Brain fog and difficulty concentrating

Common causes of low estradiol in men include:

Use of aromatase inhibitors (anastrozole, exemestane) — the most common cause in men on TRT
Hypogonadism (low testosterone, which reduces the substrate for estradiol production)
Very low body fat (less aromatase activity)
Pituitary or hypothalamic dysfunction
Certain medications

If your estradiol is low and you are on testosterone therapy, speak with your prescribing physician about whether your aromatase inhibitor dose needs adjustment. If you are not on TRT, low estradiol in men almost always reflects low testosterone — and evaluation of the full hormonal picture (total testosterone, free testosterone, LH, FSH) is warranted.

High estradiol in men

High estradiol in men (generally above 40–42 pg/mL, or above roughly 147–154 pmol/L) is most often caused by excess aromatization of testosterone — the enzymatic conversion of testosterone into estradiol. The primary driver of aromatization in men is body fat, which is rich in aromatase enzyme.

Symptoms of high estradiol in men include:

Gynecomastia (breast tissue development or tenderness)
Water retention and bloating
Reduced libido
Erectile dysfunction
Mood changes, emotional sensitivity
Fatigue

Common causes of high estradiol in men include:

Excess body fat / obesity (increased aromatase activity)
Testosterone replacement therapy without adequate monitoring
Liver disease (impaired estrogen metabolism)
Adrenal or testicular tumors (rare)
Hypogonadism with preserved aromatization
Certain medications (some antifungals, spironolactone)

High estradiol in men is treated by addressing the underlying cause — most commonly weight loss, adjustment of TRT dosing, or careful use of an aromatase inhibitor under medical supervision. Self-treatment with over-the-counter aromatase inhibitors is not recommended, as crashing estradiol causes its own significant symptoms.

High estradiol in women

What counts as "high" estradiol in women depends entirely on the phase of the menstrual cycle and menopausal status. A result of 300 pg/mL is entirely normal around ovulation but would be meaningfully elevated in the early follicular phase or in a postmenopausal woman.

High estradiol in premenopausal women

Persistently elevated estradiol outside of the normal mid-cycle surge may be associated with:

Estrogen dominance — a state where estradiol is high relative to progesterone, even if absolute E2 levels are not dramatically elevated. Associated with heavy periods, PMS, bloating, and fibrocystic breast changes.
Polycystic ovary syndrome (PCOS) — though PCOS more often involves androgen excess, estradiol levels can be elevated due to chronic anovulation
Ovarian cysts or tumors — estrogen-secreting tumors are rare but can produce very high levels
Obesity — excess adipose tissue aromatizes androgens into estrogens
Endometriosis — local estradiol production within endometrial lesions
Hormone-containing medications — including certain hormonal contraceptives and fertility treatments

High estradiol in postmenopausal women

After menopause, estradiol production from the ovaries essentially ceases. A postmenopausal estradiol level above 20–30 pg/mL (73–110 pmol/L) in a woman not taking HRT warrants investigation. Elevated postmenopausal estradiol is associated with:

Obesity (peripheral aromatization in fat tissue is the primary source of estrogen after menopause)
Hormone replacement therapy or inadvertent exposure to estrogen-containing products
Estrogen-secreting ovarian or adrenal tumor (rare but important to exclude)
Liver disease (impaired estrogen clearance)

Elevated estradiol in postmenopausal women carries meaningful clinical risk. Sustained estrogen exposure after menopause is associated with increased risk of endometrial hyperplasia and endometrial cancer (in women with an intact uterus), as well as certain hormone-receptor-positive breast cancers. This is why unexplained elevated postmenopausal estradiol — in the absence of HRT — should always be investigated rather than monitored without action. If your postmenopausal estradiol is elevated and you are not on HRT, discuss it with your physician.

Low estradiol in women

After menopause, low estradiol is expected and normal. In premenopausal women, a low result suggests reduced ovarian function — from hypothalamic suppression, premature ovarian insufficiency, hyperprolactinemia, or severe caloric restriction — and warrants evaluation.

Symptoms of low estradiol in women include:

Hot flashes and night sweats
Vaginal dryness and discomfort
Irregular or absent periods
Reduced bone density
Mood changes, anxiety, or depression
Sleep disturbances
Brain fog and memory difficulties
Low libido

Common causes of low estradiol in women include:

Menopause and perimenopause (most common)
Premature ovarian insufficiency (POI) — ovarian failure before age 40
Hypothalamic amenorrhea — often from extreme exercise, low body weight, or stress
Hyperprolactinemia
Pituitary or hypothalamic dysfunction
Certain medications (aromatase inhibitors used in breast cancer treatment, GnRH agonists)

Ultrasensitive estradiol (LC/MS) — what it means and when it's used

You may see your estradiol result labeled as "Estradiol, Ultrasensitive, LC/MS", "Estradiol Sensitive", or "Estradiol LC/MS/MS" on your lab report. This is a different assay from the standard estradiol immunoassay — and it matters which one you use.

The standard estradiol immunoassay is accurate and reliable for measuring the higher estradiol levels typical in premenopausal women. However, at low concentrations — the range relevant for men, postmenopausal women, and children — it loses accuracy due to cross-reactivity with other steroids.

The ultrasensitive LC/MS (liquid chromatography-mass spectrometry) assay uses a more precise analytical method that can accurately detect and measure estradiol at very low concentrations. It is the preferred test for:

Men (especially those on testosterone therapy)
Postmenopausal women
Children and adolescents
Anyone with suspected very low or borderline estradiol levels

The reference ranges for the ultrasensitive assay are the same as for the standard assay in the populations it's designed for. The difference is in measurement accuracy at low concentrations, not in what the numbers mean clinically. If your report says "ultrasensitive" or "LC/MS," your result is simply measured with higher precision — the interpretation guidelines in this article still apply.

Estradiol unit conversion — pmol/L to pg/mL

Estradiol is reported in pg/mL (picograms per milliliter) in the United States and pmol/L (picomoles per liter) in most of Europe, Canada, Australia, and the UK. Both units measure the same thing. To convert between them:

pg/mL × 3.671 = pmol/L
pmol/L ÷ 3.671 = pg/mL

pg/mL	pmol/L	Context
10	37	Low male / postmenopausal threshold
20	73	Low-normal male range
30	110	Mid-normal male range
40	147	Upper male range
50	184	Lower HRT therapeutic range
80	294	Early follicular phase, women
100	367	Mid follicular / HRT upper range
150	551	Follicular phase, women
200	734	Luteal phase, women
250	918	Upper follicular / lower ovulatory
300	1101	Ovulatory range, women

If your lab reports a result that seems inconsistent with your reference range, check which unit is being used. A result of 88 pmol/L (approximately 24 pg/mL) is within the normal male range — not elevated.

How to read specific estradiol results

Many people search for the meaning of a specific estradiol number. Here is how to interpret common results:

Estradiol <5 or <10 pg/mL (<18 or <37 pmol/L): Very low. Expected after menopause (if not on HRT) or in men with significant hypogonadism. In premenopausal women or men not on hormone suppression therapy, this warrants investigation.

Estradiol "less than 24" or "<24": A common LabCorp reporting format for results below the assay's lower limit. It means the result was below 24 pg/mL — within or below the normal male range. Not zero, but at or near the floor of what the standard assay can reliably measure. Men on aromatase inhibitors often see this result.

Estradiol 40–100 pg/mL (147–367 pmol/L): Normal range for premenopausal women in the follicular phase, or women on HRT. High for men — suggests aromatization excess.

Estradiol 150–300 pg/mL (551–1101 pmol/L): Normal around ovulation in premenopausal women. Elevated in men or postmenopausal women.

Estradiol >300–500 pg/mL (>1101–1836 pmol/L): At the higher end of normal or mildly elevated in premenopausal women depending on cycle timing. Very high in men or postmenopausal women — requires evaluation.

Estradiol >1000 pg/mL: Seen during fertility treatments (controlled ovarian stimulation), late pregnancy, or with estrogen-secreting tumors. Expected and monitored during IVF cycles.

FAQ about Estradiol

What is a normal estradiol level for men?

The normal estradiol range for adult men is approximately 10–40 pg/mL (37–147 pmol/L). Many clinicians focused on men's hormonal health consider 20–30 pg/mL to be the functional sweet spot, though optimal ranges vary by individual. Men on testosterone replacement therapy are typically monitored with the ultrasensitive LC/MS assay rather than the standard immunoassay.
What does low estradiol in men mean?

Low estradiol in men — typically below 10–15 pg/mL (37–55 pmol/L) — is associated with joint pain, low libido, erectile dysfunction, fatigue, mood disturbances, and reduced bone density. The most common cause in men is use of aromatase inhibitors as part of testosterone therapy. Low estradiol not related to medication almost always reflects low testosterone, since estradiol is produced by converting testosterone via the aromatase enzyme.
What does high estradiol in men mean?

High estradiol in men — above approximately 40 pg/mL (147 pmol/L) — is most often caused by excess body fat, which is rich in aromatase enzyme and converts testosterone to estradiol. Men on testosterone replacement therapy can also develop high estradiol if not monitored carefully. Symptoms include gynecomastia (breast tissue), water retention, low libido, and mood changes. Treatment focuses on the root cause — typically weight loss, TRT dose adjustment, or judicious use of an aromatase inhibitor under physician supervision.
What are normal estradiol levels in women by menstrual phase?

Estradiol fluctuates dramatically across the cycle. In the follicular phase (days 1–13), levels typically range from 19–144 pg/mL (70–529 pmol/L). At ovulation, levels surge to 64–357 pg/mL (235–1311 pmol/L). During the luteal phase (days 15–28), they range from 56–214 pg/mL (206–786 pmol/L). These ranges vary between labs. When interpreting your result, the cycle day it was drawn matters as much as the number itself.
What is a normal estradiol level after menopause?

In postmenopausal women not taking hormone replacement therapy, estradiol is typically below 10–20 pg/mL (37–73 pmol/L). Women on HRT should have levels monitored to a target set by their clinician, generally 50–100 pg/mL (184–367 pmol/L) for standard systemic therapy, though optimal HRT targets vary by formulation and individual response.
What does high estradiol mean in postmenopausal women?

Elevated estradiol in a postmenopausal woman not on HRT — generally above 20–30 pg/mL (73–110 pmol/L) — warrants evaluation. The most common cause is obesity, since fat tissue continues to convert androgens to estrogens via aromatase after the ovaries stop producing estradiol. Less commonly, elevated postmenopausal estradiol can indicate an estrogen-secreting ovarian or adrenal tumor, liver disease, or inadvertent exposure to estrogen-containing products. This finding should be discussed with a physician.
What is the difference between estradiol ultrasensitive LC/MS and standard estradiol?

Both tests measure estradiol (E2), but they use different analytical methods. The standard immunoassay is accurate for the higher levels typical in premenopausal women but loses precision at low concentrations due to cross-reactivity with other steroids. The ultrasensitive LC/MS (liquid chromatography-mass spectrometry) assay is far more accurate at low concentrations, making it the preferred test for men, postmenopausal women, and children. If your result is labeled "ultrasensitive" or "LC/MS," you are simply receiving a more precise measurement — the clinical reference ranges and interpretation remain the same.
How do I convert estradiol from pmol/L to pg/mL?

To convert: divide pmol/L by 3.671 to get pg/mL. To go the other direction, multiply pg/mL by 3.671 to get pmol/L. For example, 88 pmol/L ÷ 3.671 = approximately 24 pg/mL — a low-normal result for a man. The unit your lab uses does not change the clinical meaning of the result, but you must use matching units when comparing your number to a reference range.
What does "estradiol less than 24" or "<24" mean?

This is a reporting convention used by some laboratories (including LabCorp) to indicate that the estradiol result was below the lower limit of the assay's reliable detection range — in this case, below 24 pg/mL (approximately 88 pmol/L). It does not mean the result is exactly 24, nor that estradiol is zero. For men, this is often a normal or low-normal result. For men on aromatase inhibitors, it may indicate estradiol has been suppressed too far. For premenopausal women, it would suggest very low estradiol warranting further evaluation.
What does estradiol sensitive mean on a lab result?

"Estradiol, Sensitive" or "Sensitive Estradiol" is another name for the ultrasensitive or LC/MS estradiol assay. It means the test was performed using a high-precision method designed to accurately detect low estradiol concentrations. This is the appropriate test for men and postmenopausal women. The numerical result and reference ranges are interpreted the same way as for other estradiol tests.
What does it mean if estradiol is high in women?

Whether a high estradiol result is meaningful depends on the timing. In a premenopausal woman, estradiol naturally peaks at ovulation — a result of 200–350 pg/mL mid-cycle is entirely normal. If estradiol is consistently elevated in the early follicular phase or in a postmenopausal woman not on HRT, possible causes include obesity, ovarian cysts, PCOS, endometriosis, certain medications, or — rarely — an estrogen-secreting tumor. Symptoms of persistently high estradiol in women include irregular periods, breast tenderness, bloating, and mood changes.
What does it mean if estradiol is low in women?

Low estradiol in premenopausal women can indicate hypothalamic suppression (from extreme exercise, very low body weight, or chronic stress), premature ovarian insufficiency, hyperprolactinemia, or pituitary dysfunction. It is associated with irregular or absent periods, hot flashes, vaginal dryness, bone loss, and low libido. After menopause, low estradiol is expected and normal. Evaluation of low estradiol in reproductive-age women typically involves FSH and LH testing to determine whether the problem is at the level of the ovary or the hypothalamic-pituitary axis.
What is the difference between estradiol and estrogen?

Estrogen is the collective term for a class of hormones including estradiol (E2), estrone (E1), and estriol (E3). Estradiol is the most potent and most abundant estrogen in non-pregnant adults, and the one measured in standard blood testing. When your doctor or lab report refers to an "estradiol test," they are measuring E2 specifically — not total estrogen.
What other tests are usually ordered with estradiol?

Estradiol is most informative when interpreted alongside related hormone markers. In women, FSH and LH are often ordered together to assess ovarian function and menopausal status. Progesterone is useful for assessing luteal phase adequacy. In men, total testosterone, free testosterone, LH, FSH, and SHBG provide a complete picture of hormonal balance. Prolactin is sometimes added when low estradiol is found in a premenopausal woman to exclude hyperprolactinemia as a cause.

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What does it mean if your Estradiol result is too high?

In a premenopausal woman near ovulation, a high estradiol result is entirely expected. In a postmenopausal woman not on HRT, or in a man, an elevated result warrants investigation.

Across all groups, the most common driver is excess body fat — adipose tissue is rich in aromatase, the enzyme that converts androgens to estrogen. Other causes include hormone medications, liver dysfunction, and — rarely — hormone-secreting tumors. Symptoms vary but often include fluid retention, mood changes, and in men, gynecomastia and sexual dysfunction.

Diagnosis involves correlating the estradiol result with FSH, LH, testosterone, progesterone, and prolactin, alongside clinical symptoms and imaging where indicated. Treatment depends entirely on the underlying cause.

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What does it mean if your Estradiol result is too low?

Low estradiol is normal after menopause. In other groups it signals reduced production — from the ovaries, testes, or peripheral aromatization — and is associated with bone loss, sexual dysfunction, mood disturbances, and cardiovascular risk over time.

In reproductive-age women, low estradiol with low FSH points to hypothalamic suppression (stress, under-eating, over-exercise). Low estradiol with elevated FSH suggests ovarian insufficiency or menopause. In men, low estradiol nearly always tracks with low testosterone and is addressed by treating the testosterone deficiency rather than targeting estradiol directly.

Whether to initiate hormone replacement is a clinical decision made in the context of symptoms, bone density, cardiovascular risk, and personal health history. Do not adjust or start hormone therapy based on a lab result alone.

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View your lab data through easy-to-read graphs and tables. Quickly spot patterns, track changes, and compare results across different dates — all without digging through multiple reports. You can also select and compare graphs of specific biomarkers side-by-side to better understand how they relate and change over time.

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Export Your Complete Lab History in a Single File Export Your Complete Lab History

After collecting lab results from different providers, you can download your entire history combined into a single file. Choose from PDF, Excel, or CSV formats to easily review, share, or get a second opinion—no more juggling multiple reports.

After collecting lab results from different providers, you can download your entire history combined into a single file.

Comprehensive Data Entry Service for Your Reports Data Entry Service for Your Reports

Our inclusive service handles the data entry for your lab reports. Just submit your information and we'll take care of the rest. Advanced plan members receive five reports entered for free, then $15 per report after that. Unlimited plan members receive ten report entries for free, then $15 per report after that.

Our inclusive service handles the data entry for your lab reports. Just submit your information and we'll take care of the rest.

Securely Share With Anyone You Trust

Whether you're working with a doctor, nutritionist, caregiver, or wellness coach, you can securely share your complete lab history by sending an invite link to anyone you trust. You have full control over who sees your information and for how long, ensuring your privacy and peace of mind at every step.

Share your full lab history with your doctor, nutritionist, or coach using a secure invite link.

Discover

Let Your Lab Results Tell the Full Story

Once your results are in one place, see the bigger picture — track trends over time, compare data side by side, export your full history, and share securely with anyone you trust.

Bring all your results together to compare, track progress, export your history, and share securely.

I have been using Healthmatters.io since 2021. I travel all over the world and use different doctors and health facilities. This site has allowed me to consolidate all my various test results over 14 years in one place. And every doctor that I show this to has been impressed. Because with any health professional I talk to, I can pull up historical results in seconds. It is invaluable. Even going back to the same doctor, they usually do not have the historical results from their facility in a graph format. That has been very helpful.

Anthony

Unlimited Plan Member since 2021

What fantastic service and great, easy-to-follow layouts! I love your website; it makes it so helpful to see patterns in my health data. It's truly a pleasure to use. I only wish the NHS was as organized and quick as Healthmatters.io. You've set a new standard for health tracking!

Karin

Advanced Plan Member since 2020

As a PRO member and medical practitioner, Healthmatters.io has been an invaluable tool for tracking my clients' data. The layout is intuitive, making it easy to monitor trends and spot patterns over time. The ability to customize reports and charts helps me present information clearly to my clients, improving communication and outcomes. It's streamlined my workflow, saving me time and providing insights at a glance. Highly recommended for any practitioner looking for a comprehensive and user-friendly solution to track patient labs!

Paul

Healthmatters Pro Member since 2024

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At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.

Estradiol (E2) Blood Test: Normal Ranges, High & Low Results Explained

Estradiol reference ranges — quick answer

What is estradiol and why is it tested?

Estradiol in men — normal range, low and high results

Normal estradiol levels in men

Low estradiol in men

High estradiol in men

High estradiol in women

High estradiol in premenopausal women

High estradiol in postmenopausal women

Low estradiol in women

Ultrasensitive estradiol (LC/MS) — what it means and when it's used

Estradiol unit conversion — pmol/L to pg/mL

How to read specific estradiol results

FAQ about Estradiol

What is a normal estradiol level for men?

What does low estradiol in men mean?

What does high estradiol in men mean?

What are normal estradiol levels in women by menstrual phase?

What is a normal estradiol level after menopause?

What does high estradiol mean in postmenopausal women?

What is the difference between estradiol ultrasensitive LC/MS and standard estradiol?

How do I convert estradiol from pmol/L to pg/mL?

What does "estradiol less than 24" or "<24" mean?

What does estradiol sensitive mean on a lab result?

What does it mean if estradiol is high in women?

What does it mean if estradiol is low in women?

What is the difference between estradiol and estrogen?

What other tests are usually ordered with estradiol?

All Your Lab Results. One Simple Dashboard.

What does it mean if your Estradiol result is too high?

Related Health Conditions

All Your Lab Results. One Simple Dashboard.

Import, Track, and Share Your Lab Results Easily

Import, Track, and Share Your Lab Results

What does it mean if your Estradiol result is too low?

Related Biomarkers

Article Review & Sources

Bring All Your Lab Results Together — In One Place

Gather Your Lab History — and Finally Make Sense of It

Finally, Your Lab Results Organized and Clear

Advanced Plan

Unlimited Account

Pro Monthly

What's included in a Healthmatters membership

Import Lab Results from Any Source

See Your Health Timeline

Understand What Your Results Mean

Enter Your Lab Reports Yourself — Always Free Enter Your Lab Reports — Always Free

Visualize Your Results

Export Your Complete Lab History in a Single File Export Your Complete Lab History

Comprehensive Data Entry Service for Your Reports Data Entry Service for Your Reports

Securely Share With Anyone You Trust

Let Your Lab Results Tell the Full Story

Once your results are in one place, see the bigger picture — track trends over time, compare data side by side, export your full history, and share securely with anyone you trust.

Bring all your results together to compare, track progress, export your history, and share securely.

What Healthmatters Members Are Saying

Use promo code to save 10% off any plan.

We implement proven measures to keep your data safe.

All Your Lab Results.
One Simple Dashboard.

All Your Lab Results.
One Simple Dashboard.