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Low Estrogen Levels: Causes and Symptoms

Medically reviewed by Jobelle Ann Dela Cruz Bigalbal, MD · General Practitioner

Written by Lorraine Bunag, R.N. · Updated Jan 13, 2022

    Low Estrogen Levels: Causes and Symptoms

    In women, the hormone estrogen is produced by the ovaries, the adrenal glands, and the fat cells. We commonly associate this hormone with female reproduction and sexual health, but it actually affects  various organs in the body. Here’s what you need to know about the causes and symptoms of low estrogen levels.

    Estrogen Affects Other Body Parts

    Estrogen, a sex hormone, regulates the menstrual cycle and is vital in childbearing. However, as mentioned earlier, it also influences other organs in the body. According to reports, estrogen also affects:

    • Urinary tract
    • Bones
    • Muscles
    • Skin
    • Hair
    • Brain
    • Heart and blood vessels
    • Cholesterol control

    The encompassing function of estrogen is the reason that a significant decrease in its level will have a considerable impact on a woman’s body.

    Symptoms of Low Estrogen in Women

    In women, having low levels of estrogen may lead to the following symptoms:

    Irregular or Missed Periods

    Since estrogen is one of the driving factors in ovulation (release of egg cells), a decrease in its level may result in irregular or missed periods. Additionally, it can cause fertility issues in women.

    low estrogen levels causes and symptoms

    Vaginal Dryness

    We cannot talk about low levels of estrogen and the causes and symptoms without mentioning vaginal hydration. A woman who has too little estrogen may experience vaginal dryness, which often leads to painful sexual intercourse.

    Increased Urinary Tract Infections (UTIs)

    Low estrogen can make the urethral lining thinner, which then makes it more vulnerable to UTIs.

    Hot Flashes and Night Sweats

    Another of the most common symptoms of low estrogen levels is hot flashes. The blood rushing to your skin gives you a feeling of warmth, which can even lead to night sweats.

    Weak Bones

    Did you know that estrogen also contributes to bone strength? That’s why women with low levels of estrogen may experience bone weakness and loss. They may also be vulnerable to fractures and osteoporosis.

    Mood Swings

    Low estrogen may also result in mood swings, making you feel anxious, sad, or frustrated. Moreover, sleep deprivation from night sweats and hot flashes can contribute to mood swings and fatigue.


    Estrogen is thought to increase the levels of serotonin, another hormone that boosts mood. With a decrease in estrogen levels, the serotonin amount in the body may also be affected, which can cause depression.

    Heart Diseases

    Finally, some reports say that the estrogen that our body produces helps protect the heart. Moreover, this hormone increases the level of high-density lipoprotein, or what we know as the “good cholesterol.”

    Causes of Low Estrogen

    Now that you know about the common symptoms of low estrogen, let’s talk about the low estrogen levels and its causes. Below are some of the possible reasons why a woman’s estrogen levels drop:

    And of course, let’s not forget that women who are transitioning into the menopause stage can also experience low estrogen levels.

    Next Steps

    If ever you’re experiencing any of the common symptoms of low estrogen, please consult your doctor right away.

    When there are underlying causes to your low estrogen levels, the doctor will treat that condition to improve your symptoms. In case you have low estrogen due to menopause, the physician may discuss the possibility of estrogen replacement therapy.

    If you’re an athlete, they will most likely ask you if you’ve been training too hard. If that’s the case, you may be advised to reduce the intensity or frequency of your training.

    Key Takeaways

    The causes and symptoms of low estrogen levels vary from woman to woman. But, generally, the common cause is menopause while the symptoms often include issues in the menstrual cycle. To be sure about your condition, book an appointment with your physician.

    Learn more about Female Hormonal Imbalance here


    Hello Health Group does not provide medical advice, diagnosis or treatment.

    Medically reviewed by

    Jobelle Ann Dela Cruz Bigalbal, MD

    General Practitioner

    Written by Lorraine Bunag, R.N. · Updated Jan 13, 2022

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