“I’m 47, my periods are becoming irregular, I’m waking up sweating at night, and I don’t feel like myself anymore. But I’m still having periods. Is it too early to consider hormone replacement therapy?”
If this sounds familiar, you’re not alone.
Many women assume hormone replacement therapy (HRT) is something to consider only after their periods have completely stopped. Others worry that hormone therapy is too risky or that they should simply tolerate their symptoms.
The reality is more nuanced. HRT can be an effective treatment for menopausal symptoms, and you don’t necessarily need to wait until menopause to discuss it. The right decision depends on your symptoms, medical history, age and personal preferences.
What Is Hormone Replacement Therapy?
Hormone replacement therapy, also called menopausal hormone therapy (MHT), uses hormones to help manage symptoms associated with declining estrogen levels during perimenopause and menopause.
The two main hormones involved are:
- Estrogen: Helps relieve hot flashes, night sweats and vaginal symptoms. Systemic estrogen also helps prevent bone loss.
- Progesterone or a progestogen: Generally needed alongside systemic estrogen if you have a uterus, to protect the uterine lining from excessive stimulation.
HRT is available in several forms, including tablets, skin patches, gels, sprays and certain vaginal preparations.
The best option depends on which symptoms you’re treating and your individual health considerations.
Do I Need to Wait Until Menopause to Start HRT?
No. You may be able to start HRT during perimenopause.
Perimenopause is the transitional stage before menopause, when estrogen levels can fluctuate considerably. You may still have regular or irregular periods while experiencing symptoms such as:
- Hot flashes and night sweats
- Sleep disturbances
- Vaginal dryness or discomfort
- Changes in menstrual patterns
- Mood changes or difficulty concentrating
Menopause itself is generally confirmed after 12 consecutive months without a menstrual period, when there is no other explanation.
You don’t have to wait for that milestone to discuss treatment. If symptoms are affecting your quality of life, a healthcare professional can assess whether HRT or another treatment is appropriate.
When Is the Best Time to Start HRT?
Research suggests that the timing of HRT initiation matters, particularly for cardiovascular health.
For many otherwise healthy women with bothersome menopausal symptoms, the benefit–risk balance of systemic HRT is generally more favourable when treatment begins:
- Before age 60, or
- Within approximately 10 years of menopause onset.
This is sometimes described as the timing hypothesis.
Why does timing matter? Estrogen interacts with blood vessels and cardiovascular processes. Its effects may differ depending on age, existing atherosclerosis and how long estrogen levels have been low.
However, the 10-year window is not an expiration date. Starting HRT later does not automatically mean it is inappropriate, but it often requires a more careful assessment of cardiovascular, stroke and blood-clot risks.
Importantly, HRT should not be started solely to prevent heart disease, dementia or general aging. Its established role is primarily treating appropriate menopausal symptoms, with additional benefits such as preventing bone loss in selected patients.
Is HRT Safe? What Does Recent Research Say?
Much of the concern surrounding HRT dates back to the early 2000s, when findings from the Women’s Health Initiative (WHI) raised questions about breast cancer and cardiovascular risks.
Those findings were important, but subsequent research has helped clarify that risks are not identical for every woman or every hormone regimen.
A 2025 meta-analysis of 24 randomized controlled trials involving 5,089 participants found that HRT improved menopause-related quality-of-life measures, vaginal health and bone density. However, the authors emphasized that additional long-term research is needed to establish safety across different treatment regimens.
More recently, a nationwide Danish study published in The BMJ in 2026 followed 876,805 women and found no association between menopausal hormone therapy and increased overall mortality after adjustment for measured factors. Because this was an observational study, it cannot establish that HRT prevents death or eliminate concerns about individual risks.
In November 2025, the U.S. FDA also announced changes to broad boxed warnings for menopausal hormone therapy products, reflecting a reassessment of the evidence. However, changes to warning labels do not mean HRT is risk-free. Individual risks—including breast cancer, blood clots and stroke—still require careful consideration.
The key message is that HRT should neither be universally feared nor universally recommended.
What Health Factors Should You Consider Before Starting HRT?
Hormone replacement therapy can be an effective option for managing menopausal symptoms, but the benefits and risks vary depending on your medical history, age and the type of hormone therapy used.
Before starting HRT, your healthcare professional will consider factors such as:
- History of blood clots: Women who have previously experienced deep vein thrombosis (DVT) or pulmonary embolism may require a more specialized assessment. Recent guidelines suggest that low-dose transdermal estrogen may be considered in selected patients after an individualized risk–benefit evaluation.
- Cardiovascular health: High blood pressure, previous heart disease or stroke may influence whether HRT is appropriate and which formulation is preferred.
- Breast or endometrial cancer history: Certain hormone-sensitive cancers may make systemic HRT unsuitable. Specialist assessment is important.
- Unexplained vaginal bleeding or liver disease: These conditions may require investigation or treatment before hormone therapy can be considered.
The type and delivery method of HRT also matter. Research suggests that estrogen delivered through the skin, such as patches or gels, is associated with a lower risk of blood clots than oral estrogen. However, this does not mean that transdermal estrogen is risk-free or suitable for everyone.
The goal is to find an approach that provides meaningful symptom relief while carefully considering your individual health risks.
Do I Need Hormone Blood Tests Before Starting HRT?
Not necessarily.
During perimenopause, estrogen and follicle-stimulating hormone (FSH) levels can fluctuate substantially from one day to another. A single blood test may not accurately reflect what you’re experiencing.
For many otherwise healthy women aged 45 and older, a healthcare professional can assess perimenopause based on symptoms and menstrual history rather than routine hormone testing.
Testing may still be appropriate in certain circumstances, such as suspected early menopause, unusual symptoms or the need to rule out other conditions.
What About Bioidentical Hormone Therapy?
You may have heard that bioidentical hormones are more natural or better suited to the body.
The term bioidentical means that a hormone has the same molecular structure as a hormone naturally produced by the human body.
Importantly, commercially manufactured medications can also contain bioidentical hormones, including estradiol and micronized progesterone.
Compounded bioidentical hormones are not automatically safer or more effective than approved products. However, customized compounding may be considered when a commercially available medication cannot meet a specific patient’s needs, such as a required strength, dosage form or excipient restriction.
At Atria Compounding Pharmacy, our pharmacists work with prescribers to prepare individualized hormone formulations when clinically appropriate, while considering formulation quality, dosing and the limitations of available evidence.
So, Is HRT Right for You?
There is no single age or symptom checklist that can determine whether you should start HRT.
If menopausal symptoms are interfering with your sleep, daily activities or quality of life, you don’t need to wait until your periods stop before discussing your options.
For many healthy women experiencing bothersome symptoms during perimenopause or early menopause, HRT can offer meaningful relief. For others, nonhormonal treatments or localized therapies may be more appropriate.
The best time to start is not simply a number on the calendar. It’s when your symptoms, medical history, treatment goals and individual risks have been carefully evaluated with your healthcare professional.
Interested in personalized hormone formulations? Atria Compounding Pharmacy works with prescribers to explore customized compounding options when commercially available treatments do not meet specific patient needs.
References
1. Tang Y, Ma R, Zhang L, Sun X, Wang Y. Effectiveness and safety of hormone replacement therapy in the treatment of menopausal syndrome: a meta-analysis. Am J Transl Res. 2025;17(1):1–15. https://pmc.ncbi.nlm.nih.gov/articles/PMC11826161/
2. Mikkelsen AP, Bergholt T, Lidegaard Ø, Scheller NM. Menopausal hormone therapy and long term mortality: nationwide, register based cohort study. BMJ. 2026;392:e085998. https://www.bmj.com/content/392/bmj-2025-085998?utm_source=chatgpt.com
3. Cho L, Kaunitz AM, Faubion SS, et al. Rethinking Menopausal Hormone Therapy: For Whom, What, When, and How Long? Circulation. 2023;147(7):597–610. https://www.ahajournals.org/doi/10.1161/CIRCULATIONAHA.122.061559
4. Carlson K, Vadakekut ES. Hormone Replacement Therapy. Treasure Island (FL): StatPearls Publishing; 2026. https://www.ncbi.nlm.nih.gov/books/NBK493191/
5. U.S. Food and Drug Administration. HHS Advances Women’s Health, Removes Misleading FDA Warnings on Hormone Replacement Therapy. November 10, 2025.
6. The North American Menopause Society Advisory Panel. The 2022 hormone therapy position statement of The North American Menopause Society. Menopause. 2022;29(7):767–794. https://pubmed.ncbi.nlm.nih.gov/35797481/