Understanding the Benefits, Risks & Current Evidence on Menopausal Hormone Therapy
For many women, menopause brings symptoms that can significantly affect sleep, comfort, sexual health, and overall quality of life. Hormone therapy can be an effective treatment for many of these concerns, but decades of changing headlines and evolving research have also created understandable confusion about its benefits and risks.
At North Carolina OBGYN & Midwifery, we believe decisions about menopausal hormone therapy should be based on current evidence and your individual health—not fear, outdated assumptions, or a one-size-fits-all recommendation.
Our providers consider your symptoms, age, time since menopause, personal and family medical history, and individual health risks when discussing whether hormone therapy may be appropriate for you.
What Is Postmenopausal Hormone Therapy?
Menopausal hormone therapy, sometimes called hormone replacement therapy or HRT, replaces hormones that decline during the menopausal transition.
There are two primary forms:
- Estrogen therapy uses estrogen alone and is generally an option for women who no longer have a uterus.
- Estrogen plus a progestogen is generally used for women who still have a uterus. The progestogen helps protect the uterine lining from the increased risk of endometrial cancer associated with using systemic estrogen alone.
Hormone therapy may also be categorized as systemic or local. Systemic hormone therapy circulates throughout the body and is available in forms such as pills, patches, gels, and sprays.
Low-dose vaginal estrogen acts primarily on vaginal and urinary tissues and may be recommended when symptoms are limited to this area.
These distinctions matter because not every type of hormone therapy has the same benefits or risks.
What Symptoms Can Menopausal Hormone Therapy Improve?
Systemic hormone therapy remains the most effective treatment for menopausal vasomotor symptoms such as hot flashes and night sweats. It can also help with vaginal dryness and other symptoms related to declining estrogen levels and has been shown to prevent bone loss and fracture.
Depending on your symptoms and health history, hormone therapy may be considered for concerns such as:
- Hot flashes
- Night sweats
- Vaginal dryness
- Pain or discomfort during sex
- Sleep disruption related to menopausal symptoms
- Genitourinary symptoms associated with menopause
For women whose symptoms are primarily vaginal or urinary, systemic hormone therapy may not be necessary. Low-dose vaginal estrogen or other localized treatments may provide effective relief with substantially less systemic exposure.
Why Did Hormone Therapy Become So Controversial?
Much of the concern surrounding postmenopausal hormone therapy can be traced to the Women’s Health Initiative (WHI), a major research initiative launched in the 1990s to investigate strategies for preventing chronic disease in postmenopausal women.
The hormone therapy trials included postmenopausal women ages 50 to 79 and evaluated estrogen plus progestin in women with a uterus and estrogen alone in women who had undergone hysterectomy.
Results from the estrogen-plus-progestin trial showed increased risks of several health outcomes, including breast cancer, cardiovascular disease, stroke, and blood clots. The findings dramatically changed how hormone therapy was viewed and prescribed.
But the story did not end there.
What Did We Learn From the Women’s Health Initiative?
The Women’s Health Initiative provided enormously important information about hormone therapy. It also answered a somewhat different question than many women considering treatment today may assume. The WHI helped establish that systemic hormone therapy should not be prescribed for the purpose of preventing chronic diseases such as cardiovascular disease in postmenopausal women.
Importantly, the NIH’s 2024 review of decades of WHI findings notes that the study was not designed to assess the already-established benefits of FDA-approved hormone therapies specifically for treating menopausal symptoms. Long-term analysis has also helped physicians better understand that hormone therapy cannot be evaluated as one treatment with one universal risk profile.
The balance of potential benefits and risks varies based on factors including:
- A woman’s age
- How long it has been since menopause began
- Whether estrogen is used alone or with a progestogen
- The dose
- The route of administration
- Duration of treatment
- Personal and family medical history
- Individual cardiovascular, cancer, and blood-clot risk
This is why modern menopause care has moved away from broad recommendations for—or against—hormone therapy and toward individualized decision-making.
Does the Timing of Hormone Therapy Matter?
Yes. When hormone therapy is initiated, it is an important part of evaluating its potential benefits and risks. Current guidance from The Menopause Society states that, for most healthy women with bothersome menopausal symptoms who are younger than 60 or within 10 years of menopause onset and do not have contraindications, the benefit-risk ratio of hormone therapy is generally favorable.
Starting systemic hormone therapy more than 10 years after menopause begins or after age 60 requires additional consideration because the absolute risks of conditions such as coronary heart disease, stroke, blood clots, and dementia become greater.
This does not mean that every woman should start hormone therapy before age 60—or that hormone therapy automatically becomes inappropriate afterward. It means that age and timing are part of an individualized medical assessment, along with symptoms, medical history, and personal risk factors.
What Are the Potential Benefits of Hormone Therapy?
For appropriately selected women, menopausal hormone therapy can provide meaningful benefits.
Potential benefits may include:
- Significant reduction in hot flashes and night sweats
- Relief of vaginal dryness and discomfort
- Improvement in some menopause-related sleep disruption
- Prevention of bone loss while systemic therapy is being used
- Reduction in fracture risk
- Improvement in menopause symptoms that interfere with daily quality of life
Systemic hormone therapy is considered the most effective treatment for vasomotor symptoms such as hot flashes and night sweats. The purpose of treatment, however, is not to prescribe hormones simply because a woman has reached menopause. Treatment should address a specific symptom, health concern, or clinical indication for which the expected benefits justify the potential risks.
What Are the Potential Risks of Hormone Therapy?
Hormone therapy is not risk-free, and balanced counseling should include both its potential benefits and potential harms. Depending on the type of therapy and individual patient factors, systemic hormone therapy may be associated with increased risks that include:
- Blood clots
- Stroke
- Gallbladder disease
- Breast cancer with certain forms and durations of combined estrogen-progestogen therapy
- Endometrial cancer when systemic estrogen is used without appropriate uterine protection in a woman who still has a uterus
Cardiovascular risks also vary according to factors including a woman’s age, existing health conditions, and when treatment is initiated relative to menopause.
Importantly, these risks are not identical for every woman or every hormone therapy regimen.
Does the Type or Route of Hormone Therapy Matter?
Yes. Hormone therapy can differ by hormone formulation, dose, route of administration, and whether a progestogen is required.
For example, estrogen can be delivered orally or through the skin using a patch, gel, or spray. The American College of Obstetricians and Gynecologists (ACOG) notes that non-oral forms may pose less risk of deep vein thrombosis than oral estrogen, while The Menopause Society notes that transdermal routes and lower doses may reduce the risks of blood clots and stroke.
Low-dose vaginal estrogen is different from systemic therapy because very little estrogen enters the bloodstream. It may therefore be considered specifically for genitourinary symptoms when systemic treatment is not otherwise indicated. The appropriate formulation depends on the reason for treatment and the patient’s individual health profile.
Who May Be a Candidate for Menopausal Hormone Therapy?
Hormone therapy may be considered for women experiencing bothersome menopausal symptoms when the expected benefits outweigh their individual risks.
Evaluation may include:
- Your current symptoms
- Age
- Time since menopause
- Whether you have a uterus
- Personal and family history of breast and other cancers
- Cardiovascular health
- History of blood clots or stroke
- Liver health
- Bone health
- Current medications
- Your treatment preferences and quality-of-life goals
There is no single hormone regimen that is right for every woman.
Who Should Not Use Systemic Hormone Therapy?
Systemic hormone therapy is generally not recommended for women with certain medical histories. The ACOG identifies previous breast or endometrial cancer, stroke, heart attack, blood clots, and liver disease among the circumstances in which systemic hormone therapy usually is not recommended.
Individual circumstances can be complex, however, which is why your complete health history should be reviewed with your women’s healthcare provider before beginning treatment.
Nonhormonal therapies and, in appropriate circumstances, localized treatments may offer alternatives for women who are not candidates for systemic hormone therapy.
How Long Can You Stay on Hormone Therapy?
There is no single duration of hormone therapy that is appropriate for every woman.
Treatment should be periodically reevaluated based on whether symptoms persist, whether therapy continues to provide meaningful benefit, and whether health circumstances or risk factors have changed.
The ACOG recommends discussing the decision to continue hormone therapy with your OB/GYN each year, while The Menopause Society supports longer treatment when there is a documented indication, with shared decision-making and periodic reassessment.
In other words, hormone therapy does not necessarily need to be discontinued automatically after a predetermined number of years or at a particular birthday. Continued treatment should remain an individualized medical decision.
Hormone Therapy Is Not One-Size-Fits-All
Perhaps the most important fact about postmenopausal hormone therapy is that the question is no longer simply: “Is hormone therapy good or bad?” A more useful question is:
“What are the potential benefits and risks of this treatment for me?”
Modern menopause care recognizes that hormone therapy includes different hormones, doses, formulations, routes of administration, and treatment durations—and that women themselves have different symptoms, medical histories, risk factors, and priorities.
At North Carolina OB/GYN & Midwifery, our providers take these factors into account when discussing Menopause Care and options for symptom management. The goal is not to convince every woman to use hormone therapy or to discourage every woman from considering it. It is to provide accurate information and individualized guidance so you can make an informed decision about your health.
FAQs About Postmenopausal Hormone Therapy
Request a Menopause Consultation
Decisions about menopausal hormone therapy deserve more than a blanket yes or no.
If menopause symptoms are affecting your quality of life or you have questions about whether hormone therapy is appropriate for you, the providers at North Carolina OBGYN & Midwifery can review your symptoms, medical history, individual risk factors, and treatment preferences to help you understand your options. Request Appointment
Explore the following pages to learn more:
Perimenopause vs. Menopause: What’s the Difference?
Strengthening Your Future: Bone Health and Osteoporosis Prevention for Women
Why Am I Gaining Weight During Menopause Even Though Nothing Has Changed?