Low Estrogen

Low estrogen is a hormonal imbalance that most commonly occurs during perimenopause and menopause — a natural life stage when the body begins producing less estrogen. This shift can often bring a wave of new (and sometimes frustrating) emotional and physical symptoms.

But menopause isn’t the only cause of low estrogen. It can also happen earlier in life due to certain health conditions, medications, or lifestyle factors.

In this guide, we’ll break down what estrogen does in the body, what happens when levels get too low, and how to find relief — wherever you are in your hormonal journey.

What Is Low Estrogen?

Estrogen is a key sex hormone involved in everything from reproductive health and menstrual cycles to mood and metabolism. When your estrogen levels drop below what’s needed to support these systems, it can lead to physical and emotional disruptions.

Low estrogen isn’t a diagnosis in and of itself — it’s a hormonal imbalance that happens when the body isn’t producing as much estrogen as it typically should for a person’s age or life stage.

Low estrogen is a natural part of the transition into menopause, when estrogen production declines significantly. However, it can also happen earlier due to certain health conditions, medications, or lifestyle factors.

Once women reach menopause — defined by 12 months of amenorrhea, or the absence of menstrual periods — estrogen levels remain consistently low.

What Does Estrogen Do in the Body?

Estrogen supports a wide range of essential functions in the body, like:

• Helping regulate menstruation and ovulation

• Maintaining vaginal tissue and lubrication

• Supporting bone strength and density

• Influencing mood, energy, and libido (sex drive)

• Playing a role in skin, hair, and cardiovascular health

Three main types of estrogen are naturally found in the body:

• Estradiol (E2). E2 is the most potent and prevalent type during the reproductive years, playing a central role in the menstrual cycle and fertility.

• Estriol (E3). E3 is produced in significant amounts during pregnancy to support the uterus and prepare for childbirth. Outside of pregnancy, levels of estriol are typically very low.

• Estrone (E1). E1 is the dominant form after menopause. It’s considered a weaker estrogen but can be converted into other forms.

What Are Normal Estrogen Levels?

Estrogen levels vary based on age, menstrual cycle phase, and life stage — which means there’s a broad range of what’s considered “normal.” That said, lab reference ranges can provide a general idea of where your levels may fall.

Estrogen is most often measured through blood tests, though urine or saliva may sometimes be used.

While it’s best to work with a healthcare provider to understand these clinical terms and numbers, it can be helpful to see them at a glance, too.

According to Mayo Clinic Laboratories, typical levels in females include:

FYI, pg/mL is picograms per milliliter, a unit of measurement used in medicine to show small concentration levels of substances.

If your healthcare provider suspects a hormonal imbalance, they may recommend testing to get a clearer picture of your estrogen levels. Then they can guide next steps based on your symptoms, health history, and goals.

The symptoms of low estrogen can range from subtle to disruptive. They often overlap with other hormonal shifts, like perimenopause and menopause. The shifts can also happen during reproductive age.

Symptoms of Low Estrogen

Some of the most common symptoms of low estrogen include:

• Irregular or missed periods

• Hot flashes and night sweats

• Vaginal dryness, which may also come with irritation, pain during sex (dyspareunia), and increased urinary urgency or frequency

• Low libido, or a noticeable drop in sex drive

• Mood changes, including mood swings, anxiety, symptoms of depression, brain fog, or trouble concentrating

• Fatigue or low energy levels

• Headaches or worsening of menstrual migraines

• Bone thinning (osteopenia or osteoporosis), especially over time, as estrogen plays a key role in maintaining bone density

• Sleep disruptions, such as difficulty falling or staying asleep

A lot of these can overlap with perimenopause and menopause symptoms, so it’s best to consult a medical professional.

Can Low Estrogen Lead to Weight Gain?

Since estrogen can affect metabolism and body fat, it’s possible for fluctuations in estrogen to lead to weight gain.

Research shows that when estrogen levels drop during menopause, it can lead to more belly fat and a higher risk of heart problems. Some researchers believe a decrease in estrogen might be part of why some women gain weight during menopause.

How Low Estrogen Symptoms Can Vary by Life Stage

Low estrogen can show up differently depending on your age and reproductive stage:

• In adolescence, low estrogen can delay puberty or disrupt normal sexual development.

• In people of reproductive age, it can lead to irregular periods, infertility, or painful sex due to thinning vaginal tissues and dryness.

• During perimenopause and menopause, estrogen fluctuations — and then the long-term drop in estrogen — can cause sleep issues, hot flashes, vaginal and urinary symptoms, and changes in weight distribution, particularly increased abdominal fat.

Over time, low estrogen may also contribute to bone thinning (osteopenia or osteoporosis) and increase the risk of heart disease — especially if left unaddressed.

Estrogen levels can drop for a number of reasons, depending on your age, medical history, and overall health.

What Are the Causes of Low Estrogen?

In younger women, low estrogen may be caused by:

• Pituitary gland dysfunction (a critical endocrine gland involved in hormone production)

• Ovarian conditions like primary ovarian insufficiency (POI)

• Certain cancer treatments, including chemotherapy and radiation

• Surgical removal of the ovaries (oophorectomy)

• Chronic stress

• Disordered eating or very low body weight

• Excessive or intense exercise

In midlife, low estrogen most often results from the natural transition into perimenopause and eventually menopause, when the ovaries stop producing most reproductive hormones.

After menopause, estrogen levels remain consistently low. Although this hormonal change is natural, it can still feel disruptive. Understanding what’s going on in your body is the first step toward managing symptoms and staying supported through this transition.

Certain lifestyle habits, environmental factors, and health conditions can increase a person’s risk of low estrogen. These are called risk factors.

Low Estrogen Risk Factors

Estrogen plays a crucial role across many systems in the body, so when levels are too low (or too high, for that matter), it can contribute to or result from a range of health conditions.

In some cases, it’s a chicken-or-egg scenario: Low estrogen may be the root issue of a health issue, while in other instances, an underlying condition may disrupt estrogen production.

Here are several conditions commonly linked to estrogen imbalance:

• Anorexia nervosa. This eating disorder causes the body to go into a state of starvation, which disrupts hormone production and often leads to missed periods and low estrogen levels. It can have long-term effects on bone health and fertility.

• Turner syndrome. This chromosomal condition often leads to low estrogen levels and underdeveloped ovaries, breasts, and uterus in females. While it’s mostly considered a sexual development disorder, it can also lead to other physical issues like heart problems and learning difficulties.

• Infertility. Low or high estrogen levels can interfere with ovulation, making it difficult to conceive naturally. It may also affect the thickness of the uterine lining needed for embryo implantation.

• Osteoporosis. Estrogen helps maintain bone density, so low levels can increase the risk of bone loss (particularly after menopause). 

• Surgical removal of ovaries (oophorectomy). Removing the ovaries causes an abrupt drop in estrogen, leading to immediate menopausal symptoms and long-term health considerations.

• Gender-affirming hormone therapy and surgery. Some transgender and nonbinary people undergo treatments that suppress or alter estrogen production. These changes can affect symptoms and require personalized medical care and monitoring.

You’ll want to see a qualified healthcare provider to confirm whether you have low estrogen.

How Is Low Estrogen Diagnosed?

If you’re experiencing symptoms of low estrogen, your healthcare provider may do a physical exam, review your medical history, and order blood tests to check your hormone levels.

These tests often measure estradiol (a type of estrogen), along with two others: follicle-stimulating hormone (FSH) and luteinizing hormone (LH). They may also measure progesterone or thyroid hormones to get a fuller picture of what’s going on. But FYI, estradiol might need to be checked several times since it can fluctuate.

Your age, menstrual history, and other symptoms will help guide both diagnosis and next steps.

Treatment depends on the underlying cause of low estrogen levels and the severity of symptoms. In many cases, hormone therapy is the most effective option — especially for people navigating menopause.

But lifestyle changes and non-hormonal medications can also provide meaningful relief and support long-term health.

Treatment Options for Low Estrogen

Here’s an overview of treatments that may help those with low estrogen.

Hormone Replacement Therapy (HRT) for Low Estrogen

HRT is one of the most effective ways to ease common menopause symptoms like hot flashes, night sweats, vaginal dryness, and mood swings. It works by supplementing hormones your body no longer produces.

If you’ve had a hysterectomy, estrogen-only therapy is usually the go-to treatment for those who’ve had a hysterectomy. Meanwhile, a combination of estrogen and progestin is typical for those who still have a uterus, as it helps protect the uterine lining.

HRT is available in multiple forms, including pills, patches, gels, creams, and vaginal rings. Your provider can help tailor the right type and dosage for you.

Also, research shows that starting hormone replacement therapy within 10 years of menopause (or before age 60) may lower the risk of heart disease, osteoporosis, and other chronic conditions. Still, it’s important to discuss potential risks and benefits with your healthcare provider.

Hormonal Birth Control Pills

For younger people who may not be eligible for HRT yet, low-dose oral contraceptives may help regulate hormone fluctuations during perimenopause — and offer contraception, of course.

Non-Hormonal Alternative Treatments for Low Estrogen

If HRT isn’t a fit for you, several non-hormonal therapies may help manage symptoms:

• Antidepressants. Selective serotonin reuptake inhibitors (SSRIs) or serotonin-norepinephrine reuptake inhibitors (SNRIs) can ease mood swings and depression as well as reduce hot flashes.

• Gabapentin. Originally used for seizures, this medication can reduce hot flashes in some people.

• Clonidine. This is a blood pressure medication that may lessen hot flashes.

• Fezolinetant. This non-hormonal medication is approved by the FDA (U.S. Food and Drug Administration) to treat moderate to severe hot flashes.

• Oxybutynin. This is typically used for an overactive bladder, but it may also ease vasomotor symptoms (relating to blood flow in small blood vessels).

• Ospemifene. This medication is a selective estrogen receptor modulator (SERM) used to treat painful sex caused by vaginal thinning.

• Vaginal moisturizers or lubricants. Fragrance-free, gentle products can ease dryness and irritation during intimacy.

While you can’t always control hormonal shifts — especially those related to age or genetics — healthy lifestyle habits may help support estrogen balance and ease symptoms when they arise.

Lifestyle Changes to Support Estrogen Levels

Whether you’re navigating perimenopause or managing long-term effects of low estrogen, these changes might make a meaningful difference:

• Stay active. Regular movement improves mood, supports bone and muscle strength, and promotes restful sleep. Aim for a mix of cardio and strength training — even a brisk walk counts.

• Fuel your body well. A balanced diet full of whole, nutrient-rich foods is essential for overall health. You could also include phytoestrogen-rich foods like soy, flaxseeds, and legumes (think tempeh, tofu, lentils, and chickpeas). These may offer mild, natural hormone support.

• Get enough sleep. Stick to a consistent sleep schedule, limit screen time before bed, and create a dark, quiet, cool environment for better rest.

• Manage stress. Chronic stress can disrupt hormonal balance. To manage stress, try mindfulness practices like yoga, meditation, or simply spending time in nature. Cognitive behavioral therapy (CBT) may also help with mood while building coping skills.

• Consider complementary therapies. Some people find relief from acupuncture or herbal supplements. Always talk to your provider before starting new supplements, especially if you’re on medication or managing other health conditions.

Estrogen levels fluctuate naturally throughout life, but persistent imbalances — particularly drops that cause uncomfortable or disruptive symptoms — deserve attention and care. If something feels off, you don’t have to simply brush it aside and deal.

A quick conversation with a healthcare professional specializing in women’s health or endocrinology can help uncover what’s going on and guide you toward the right treatment plan. Whether you’re navigating menopause, managing a health condition, or just trying to feel more like yourself, support is out there — and you don’t have to figure it out alone.