Short answer: High estrogen in men usually means a high level of estradiol, the main estrogen, or estrogen that is high relative to testosterone. The most recognized signs are enlarged or tender breast tissue (gynecomastia), lower sex drive, erection problems and fertility problems. Common drivers include excess body fat, certain medications, testosterone or anabolic steroid use, alcohol, and liver, kidney or thyroid disease, while tumors are rare but important causes. Only a blood test and a clinician can confirm it, and treatment depends on the cause.
Key Takeaways
- Men need some estrogen. Research reviews describe estradiol as important for libido, erectile function and sperm production, so the goal is balance, not elimination.[1]
- Signs of high estrogen in men include breast enlargement or tenderness, low sex drive, erectile dysfunction and infertility.[2][3]
- Gynecomastia develops when testosterone drops compared with estrogen, and Mayo Clinic notes it affects roughly 24% to 65% of men aged 50 to 80, often without symptoms.[4]
- A common lab reference range for estradiol in adult men is 10 to 50 pg/mL, but ranges vary between labs and results must be read by your clinician.[5]
- Medications such as anti-androgens, some antidepressants, opioids, some ulcer and heart drugs, plus anabolic steroids and alcohol, are recognized contributors to breast tissue growth in men.[4]
- Prescription estrogen blockers are a clinician decision. Healthline notes aromatase inhibitors are not usually recommended for men outside specific clinical situations.[6]
What Estrogen Does in a Man’s Body
Estrogen is often described as a “female hormone,” but men make it every day. MedlinePlus explains that men produce small amounts of estradiol (E2) in the testicles, while estrone (E1) is made mostly by body fat and the adrenal glands. A third estrogen, estriol (E3), stays very low in men.[3]
Much of a man’s estradiol comes from testosterone itself. An enzyme called aromatase converts testosterone into estradiol. A 2016 review in the Asian Journal of Andrology by Schulster, Bernie and Ramasamy notes that estrogen receptors and aromatase are present in the brain, the penis and the testes, and that estradiol plays a role in sexual arousal, erectile function and the production of sperm.[1]
The same review makes a point that matters for anyone reading about this topic: in the testes, estrogen can have inhibitory or stimulatory effects depending on dose and timing. In other words, both too little and too much can cause trouble. The authors also note that low testosterone and high estrogen are each independent risk factors for erectile dysfunction.[1]
Because the two hormones are linked, doctors rarely look at estradiol alone. They usually interpret it next to total and free testosterone, SHBG and other markers. If you want background on those numbers, see our guides to normal testosterone levels and free vs total testosterone.
Signs and Symptoms of High Estrogen in Men
No single symptom proves high estrogen, and many signs overlap with low testosterone, thyroid problems or medication side effects. That is why lab testing matters.
Gynecomastia (enlarged breast tissue)
This is the most specific sign. Mayo Clinic describes swollen breast tissue, tenderness and nipples that are sensitive when rubbing against clothing. It explains that gynecomastia can happen when the amount of testosterone in the body drops compared with estrogen, either because testosterone falls, its effects are blocked, or estrogen rises.[4] Gynecomastia is true glandular tissue, which is different from fat on the chest, although the two can look similar. A clinician can tell them apart on exam.
Sexual and fertility symptoms
Cleveland Clinic lists decreased sex drive, enlarged breasts, erectile dysfunction and infertility among the symptoms of high estrogen in people assigned male at birth.[2] MedlinePlus notes that doctors may order an estrogen test when a man has enlarged breasts, infertility or erectile dysfunction, to see whether excess estrogen is contributing.[3] Healthline adds that excess estrogen can slow sperm production.[6]
Other changes that may appear
Healthline lists fatigue, muscle loss, reduced body hair, bone loss and trouble concentrating as symptoms that can show up with male hormone imbalances in general.[6] These are not specific to estrogen, and several also appear with low testosterone. If you recognize several of them, our article on the signs of low testosterone covers the overlap.
When to see a doctor promptly
Mayo Clinic advises seeing a doctor for swelling, pain or tenderness in the breast, fluid leaking from one or both nipples, a firm or hard lump, or dimpling of the breast skin.[4] A firm lump, discharge or skin changes need prompt evaluation because breast cancer, while uncommon, does occur in men.
What Causes High Estrogen in Men
The table below groups the causes named by Mayo Clinic, Cleveland Clinic, MedlinePlus and Healthline. Liver, kidney and thyroid disease are a key reason not to self-diagnose.
| Cause | How it may raise estrogen or shift the balance | Source |
|---|---|---|
| Excess body fat (obesity) | Body fat produces estrogen, so a higher body fat percentage can raise levels | Cleveland Clinic[2] |
| Testosterone therapy, androgens and anabolic steroids | More testosterone is available for conversion to estradiol; androgens and steroids are listed causes of gynecomastia, and testosterone can affect estradiol test results | Mayo Clinic[4], MedlinePlus[5] |
| Prescription medications | Anti-androgens (flutamide, finasteride, spironolactone), efavirenz, some antibiotics, tricyclic antidepressants, diazepam, opioids, cimetidine, omeprazole, digoxin, calcium channel blockers, metoclopramide and chemotherapy are linked to gynecomastia | Mayo Clinic[4] |
| Alcohol and recreational drugs | Alcohol, amphetamines, marijuana, heroin and methadone are listed contributors; excess alcohol may reduce estrogen breakdown | Mayo Clinic[4], Cleveland Clinic[2] |
| Liver disease and cirrhosis | The liver clears estrogen, so liver problems can let it build up | Cleveland Clinic[2], Mayo Clinic[4] |
| Kidney failure | About half of people on dialysis develop gynecomastia | Mayo Clinic[4] |
| Hyperthyroidism | Listed as a condition that alters the hormone balance | Mayo Clinic[4] |
| Hypogonadism (low testosterone) | Estrogen becomes high relative to testosterone even if it is not high on its own | Mayo Clinic[4] |
| Tumors of the testes, adrenal glands or pituitary | Some tumors produce hormones or alter hormone signaling; rare but important | Mayo Clinic[4], MedlinePlus[3] |
| Some herbs, oils and supplements | Tea tree and lavender oils in skin products have been linked to gynecomastia; Healthline lists some herbs and supplements, such as ginkgo or ginseng, among possible contributors | Mayo Clinic[4], Healthline[6] |
Body fat and aromatase
Obesity is the cause most men can influence. Cleveland Clinic explains that body fat produces estrogen, so more body fat can mean more estrogen.[2] Mayo Clinic lists aging, particularly in people who are overweight, as a contributor to gynecomastia, and obesity as a risk factor.[4]
Testosterone therapy and steroids
Men on testosterone replacement therapy (TRT) sometimes see estradiol rise because more testosterone is available for aromatase to convert. Mayo Clinic lists androgens and anabolic steroids among the medications that can cause gynecomastia, and names anabolic steroid use for athletic performance as a risk factor.[4] If you are on TRT and notice breast tenderness, tell the prescribing clinician rather than adjusting doses or adding drugs on your own.
How High Estrogen Is Tested
The standard test is a blood draw that measures estradiol. MedlinePlus lists a normal male range of 10 to 50 pg/mL (36.7 to 183.6 pmol/L) and notes that ranges vary slightly between laboratories.[5] Healthline’s table gives typical adult male values of 10 to 40 pg/mL for estradiol and 10 to 60 pg/mL for estrone.[6] The difference shows why your result should always be compared to the range printed on your own lab report.
A few practical points from MedlinePlus:
- Male estrogen levels do not change much over life, and a clearly high level is usually a sign of a health condition such as infertility or an estrogen producing tumor.[3]
- Several medications can affect estradiol results, including antibiotics such as ampicillin or tetracycline, corticosteroids, DHEA, estrogen, phenothiazines and testosterone.[5]
- Do not stop any medicine before the test unless your provider tells you to.[5]
Doctors usually order estradiol together with total testosterone, often free testosterone and SHBG, and sometimes LH, FSH, prolactin, liver and kidney tests or thyroid tests, depending on the symptoms. Timing matters for testosterone, so read our guide on the best time to check testosterone levels before booking the draw. If your SHBG came back high, our article on high SHBG in men explains what that means for the rest of the panel.
Treatment Is a Clinician Decision
There is no single treatment for “high estrogen in men” because it is a finding, not a diagnosis. Treatment follows the cause.
Address the underlying cause
Cleveland Clinic notes that a provider may adjust a medication that is raising estrogen levels.[2] If liver, kidney or thyroid disease, a tumor or hypogonadism is found, managing that condition comes first. Mayo Clinic notes that gynecomastia may go away on its own, and if it does not, medicine or surgery may help.[4]
Prescription estrogen blockers
Aromatase inhibitors such as anastrozole and exemestane are sometimes discussed online as a quick fix. Healthline states that they are not usually recommended for men, have limited research support, and are used only when clinically indicated, and that research suggests they are less effective than SERMs (selective estrogen receptor modulators) for gynecomastia.[6] Driving estradiol too low carries its own problems, given its role in libido, erection and sperm production.[1] These drugs require a prescription and monitoring.
Lifestyle factors that are sourced
Cleveland Clinic lists lifestyle steps that can support healthier estrogen levels: reducing body fat, a low fat and high fiber diet with minimal processed sugar, limiting alcohol, managing stress and reducing exposure to xenoestrogens (estrogen like chemicals found in some plastics, pesticides, household cleaners, soaps and shampoos).[2] Healthline suggests regular physical activity, starting with about 15 to 30 minutes a day and mixing cardio with strength work.[6] These habits are reasonable for most men, but they do not replace testing when symptoms are present.
Possible Health Risks of Untreated High Estrogen
Cleveland Clinic says high estrogen may worsen conditions such as breast cancer, insulin resistance and obesity, although it does not necessarily cause them.[2] Healthline lists gynecomastia, diabetes, blood clots, stroke and certain cancers, including breast and prostate cancer, as risks associated with high estrogen in adults.[6]
Where Ultra Bann Fits (and Where It Does Not)
Ultra Bann is a natural male vitality supplement by DL Bioproducts, taken as one capsule every 2 days. It is not designed to lower estrogen, and it is not a substitute for testing or medical care if you have symptoms described in this article. Each serving lists seven botanicals with exact amounts and no proprietary blend, including Panax ginseng at 110 mg. Because Healthline lists ginseng among herbs and supplements that may contribute to higher estrogen,[6] men with gynecomastia, a high estradiol result, or a hormone sensitive condition should show the full Ultra Bann ingredient label to their doctor before taking it. If your clinician is comfortable with it, you can find it in the Ultra Bann shop, with free US shipping and a 60-day money-back guarantee on a first order.
Frequently Asked Questions
What are the first signs of high estrogen in men?
The most specific early sign is tenderness, swelling or a small rubbery disc of tissue under one or both nipples (gynecomastia). Lower sex drive, erection problems and fertility problems are also listed by Cleveland Clinic. Because these symptoms have many possible causes, a blood test is needed to confirm the picture.
What is a normal estradiol level for a man?
MedlinePlus lists 10 to 50 pg/mL (36.7 to 183.6 pmol/L) as a normal male range, and Healthline cites 10 to 40 pg/mL. Labs use slightly different ranges, so compare your result to the range on your own report and review it with your clinician.
Can testosterone therapy cause high estrogen?
It can. Testosterone is the raw material aromatase converts into estradiol, androgens are a listed cause of gynecomastia, and testosterone can affect estradiol test results. If you are on TRT and notice breast tenderness or swelling, contact your prescriber rather than changing the dose or adding an estrogen blocker yourself.
How do men lower high estrogen?
By treating the cause. That can mean adjusting a medication, managing liver, kidney or thyroid disease, changing a TRT protocol, or treating a rare tumor. Cleveland Clinic also lists reducing body fat, limiting alcohol, managing stress and a high fiber diet as supportive steps. Prescription estrogen blockers are a clinician decision and are not routinely recommended for men.
Is gynecomastia always caused by high estrogen?
No. Mayo Clinic explains that it happens when testosterone drops compared with estrogen, so low testosterone, medications that block testosterone’s effects, malnutrition or kidney failure can all play a role even when estrogen itself is not high. It is also common and often harmless in newborns, during puberty and in older men.
References
- Schulster M, Bernie AM, Ramasamy R. The role of estradiol in male reproductive function. Asian Journal of Andrology, 2016 (abstract via UroToday). urotoday.com
- Cleveland Clinic. High Estrogen: Causes, Symptoms and Treatment. my.clevelandclinic.org
- MedlinePlus, U.S. National Library of Medicine. Estrogen Levels Test. medlineplus.gov
- Mayo Clinic. Gynecomastia: Symptoms and causes. mayoclinic.org
- MedlinePlus Medical Encyclopedia. Estradiol blood test. medlineplus.gov
- Healthline. Estrogen in Men: Levels, Symptoms, and Treatment. healthline.com
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. This article is for information only and is not medical advice.
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