Current guidelines indicate that for most healthy women, the benefits of MHT for treating bothersome menopausal symptoms outweigh the risks. Concerns largely stem from a 2002 study that has since been reassessed; over 20 years of additional research has updated the understanding of MHT safety, and current guidelines, including from the Society of Obstetricians and Gynaecologists of Canada, recognize MHT as a treatment option for symptomatic women when started at the appropriate time (before age 60 or within 10 years of the last menstrual period).

Are bioidentical hormones (BHRT) safe and regulated in Canada?

Many Health Canada-approved MHT products, including estradiol and micronized progesterone, are already bioidentical and have undergone clinical testing and safety review. Compounded bioidentical hormones (CBHRT) from compounding pharmacies, however, are not regulated for purity, potency, or safety, have no standardized dosing, and are not recommended for routine use by Health Canada or major medical societies.

Middle-aged woman in black athletic wear sitting on a stone bench outdoors, smiling.

Menopause hormone therapy: is it right for you?

Q: What is menopause hormone therapy (MHT)?

MHT involves taking medications that contain female hormones to replace the ones your body stops making during menopause. It comes in several forms, including pills, patches, gels, creams, and vaginal rings, and the right option depends on your specific symptoms, medical history, and lifestyle.

Q: Who should consider MHT?

MHT may be appropriate if you experience bothersome hot flashes or night sweats, have vaginal dryness or pain during intercourse, are at risk of osteoporosis, are under 60 or within 10 years of menopause onset, and are generally healthy without contraindications.

Q: Who should avoid MHT?

MHT is generally not recommended for those with a history of breast cancer or certain other estrogen-related cancers, a history of heart attack, deep blood clots, or stroke, severe liver disease, or unexplained vaginal bleeding. Always consult a healthcare provider to assess your individual risk factors.

Q: Will MHT help with menopause weight gain?

MHT is not a weight loss treatment and won't prevent natural aging-related metabolic changes; evidence suggests it's generally weight neutral. However, by treating bothersome symptoms, improving sleep and energy, reducing joint pain, and stabilizing mood, MHT can indirectly support the healthy habits that help manage weight.

Q: How long should you stay on MHT?

There is no age limit or maximum number of years for MHT use; many women safely use it for years under medical supervision. The decision to continue, taper, or stop should be personalized based on symptom severity, age and time since menopause, individual risk factors, and quality-of-life goals.

Q: What are the long-term side effects of MHT?

Long-term safety depends significantly on when you start MHT and your individual risk factors. For women who start before age 60 or within 10 years of menopause onset, cardiovascular risk is not significantly increased; risk increases with later initiation. Breast cancer risk increase is minimal with short-term use and modestly higher with 5+ years of combined therapy (about 1-2 additional cases per 1,000 women per year), decreasing after stopping. Oral estrogen slightly raises blood clot risk, though transdermal patches significantly reduce this risk compared to oral tablets.

Physical Health · Aug 20, 2026

Understanding Hormone Therapy for Menopause: What You Need to Know

Navigating menopause symptoms can feel overwhelming, but you don't have to do it alone. Here's what the latest research says about menopause hormone therapy (MHT), previously referred to as hormone replacement therapy (HRT), and whether it might be right for you.

Menopause is a natural transition, but the symptoms—hot flashes, night sweats, sleep disturbances, mood changes—can significantly impact your quality of life. If you've been researching solutions, you've likely come across menopause hormone therapy (previously called hormone replacement therapy or HRT). But with conflicting information online, it can be hard to separate fact from fiction.

What is menopause hormone therapy (MHT)?

Hormone therapy involves taking medications that contain female hormones to replace the ones your body stops making during menopause. MHT comes in various forms—pills, patches, gels, creams, and vaginal rings—and your healthcare provider can help determine which option best fits your specific symptoms and lifestyle.

The type of hormone therapy recommended depends on your symptoms and medical history. Here's what the latest research shows about which therapy is most effective for different concerns:

🌡️ For hot flashes and night sweats

Combined estrogen-progestogen therapy is the first-line treatment for women who still have their uterus. Systemic therapy (delivered through pills, patches, or gels) works throughout your body and is more effective for these bothersome vasomotor symptoms than localized treatments. This approach protects your uterine lining while addressing your symptoms.

💧 For vaginal dryness and discomfort alone

If vaginal dryness, itching, or pain during intercourse is your primary symptom, local (vaginal) estrogen therapy is the first-line choice. These low-dose treatments—available as creams, tablets, or vaginal rings—deliver estrogen directly where you need it, with minimal systemic absorption. This is often effective without requiring whole-body hormone therapy.

🏥 For women who have had a hysterectomy

Estrogen-only therapy may be an option since you don't need progestogen protection for the uterus. Your healthcare provider will discuss whether this is appropriate based on your individual risk factors.

Is MHT safe? Understanding the latest research

Current guidelines indicate that for most healthy women, the benefits of MHT for treating bothersome menopausal symptoms outweigh the risks—especially with current guidelines and understanding.

Why the confusion? The 2002 WHI study and what's changed

If you've heard concerns about hormone therapy, you're likely thinking of the 2002 Women's Health Initiative (WHI) study, which raised alarm about certain health risks. That study significantly impacted how MHT was prescribed for decades. However, extensive research over the past 20+ years has fundamentally changed our understanding of hormone therapy safety.

What the latest research shows (2020s)

Recent clinical trials and updated guidelines from 2020 onwards paint a much clearer—and more reassuring—picture:

The Society of Obstetricians and Gynaecologists of Canada (SOGC) recognizes MHT as a treatment option for symptomatic women when initiated at the appropriate time (before age 60 or within 10 years of the last menstrual period), with the understanding that safety and efficacy vary based on individual health factors, the specific type of therapy used, and ongoing medical supervision. (1)
In alignment with evolving global evidence, the clinical understanding of MHT risks has shifted away from the initial WHI study findings. This has led to a modernization of how risks are communicated in product labels and clinical guidelines in Canada, moving toward a more personalized risk-benefit analysis as recommended by the SOGC. (2)
The Menopause Society 2023 Position Statement: The most recent guidance reaffirms that MHT is considered first-line treatment for bothersome menopausal symptoms in healthy women at the right time in their menopausal journey.

Key differences: why 2020s research differs from 2002

The WHI study primarily involved women aged 50–79, many of whom started hormone therapy years after menopause began (the average age was 63). Current evidence shows that timing is critical—MHT is safest when started closer to menopause onset in women without contraindications. Additionally, the WHI used specific formulations and dosages that differ from modern prescribing practices.

According to current guidelines from the North American Menopause Society and Health Canada, MHT is considered a first-line treatment for moderate to severe menopausal symptoms when started at the appropriate time.

"Menopause Hormone Therapy is the first line therapy for bothersome menopausal symptoms, and can be used safely in most women when started at the appropriate time."

- Dr. Jennifer Tomas, Menopause Program Clinical Lead at TELUS Health

Who should consider MHT?

MHT may be appropriate if you:

Experience bothersome hot flashes or night sweats
Have vaginal dryness, itching, or pain during intercourse
Are at risk of osteoporosis and need bone protection
Are under 60 or within 10 years of menopause onset
Are generally healthy without contraindications

Who should avoid MHT?

MHT is generally not recommended if you have:

A history of breast cancer or certain other estrogen-related cancers
A history of heart attack, deep blood clots or stroke
Severe liver disease
Unexplained vaginal bleeding

Always consult with a healthcare provider to assess your individual risk factors.

Will MHT help with menopause weight gain?

Many women notice weight gain—particularly around the midsection—during menopause. It's important to understand that MHT is not a weight loss treatment, and it won't prevent the natural aging-related metabolic changes. Evidence suggests that MHT is generally weight neutral.

However, by treating bothersome menopausal symptoms, improving sleep and energy, reducing joint pain, and stabilizing mood, MHT can indirectly support the healthy habits—like regular exercise and balanced nutrition—that help manage weight.

If weight management is a primary concern, a TELUS Health MyCare provider can discuss comprehensive lifestyle strategies and medical treatment options alongside any hormone therapy considerations.

Bioidentical hormones: are BHRT and compounded hormones safe and regulated in Canada?

You may have heard marketing claims about "bioidentical" or "natural" hormones being safer than traditional MHT. Here's what Canadian and FDA regulators actually say:

What are bioidentical hormones?

Bioidentical hormones are chemically identical to the hormones your body produces. The key point: Many Health Canada–approved MHT products are already bioidentical—including estradiol and micronized progesterone. These include:

Estradiol (patches, gels, tablets)
Micronized progesterone (oral formulations)
Conjugated estrogens derived from plant sources

You can verify approved bioidentical products in the

Health Canada Drug Product Database

or the

Canadian Menopause Society's MHT product list

. All of these have undergone clinical testing and rigorous safety review.

What about compounded bioidentical hormones (CBHRT)?

Compounded bioidentical hormones are custom-mixed formulations from compounding pharmacies. While marketed as "personalized" or more natural, Health Canada and the FDA have serious concerns:

Not regulated for purity, potency, or safety — each batch may differ
No standardized dosing — you may not receive the dose you expect
No evidence they're safer or more effective — clinical research shows they perform no better than approved products
Not recommended for routine use by Health Canada or major medical societies

The bottom line

When you choose a Health Canada–approved MHT product, whether it's labeled "bioidentical" or not, you're getting a medication that has been tested, meets quality standards, and is backed by safety data. Compounded bioidentical hormones cannot make these claims. If you're interested in bioidentical options, ask your healthcare provider about the approved products available through Health Canada.

Exploring alternatives to MHT

Not everyone can—or wants to—take hormone therapy. If you're looking to manage menopausal symptoms without MHT, several evidence-based alternatives exist, including non-hormonal prescription medications, lifestyle strategies, and behavioural approaches.

Prescription medications like SSRIs have strong clinical evidence for reducing hot flashes and night sweats. New neurokinin-receptor antagonist medications work on your brain’s internal thermostat to effectively reduce hot flashes and night sweats. Lifestyle strategies—including regular exercise, stress reduction, sleep optimization, and trigger avoidance—can be highly effective, especially when combined.

While natural supplements like black cohosh and phytoestrogens are popular, research shows they're not effective for menopausal symptoms.

Your healthcare provider can help you choose the approach that works best for your specific symptoms and health situation.

What to expect when starting MHT

If you and your provider decide MHT is right for you, here's a general timeline:

First few weeks: Some women experience temporary side effects like breast tenderness, bloating, or spotting. These often resolve as your body adjusts.
4–8 weeks: Hot flashes and night sweats typically begin to improve
3 months: Most women experience significant symptom relief
Ongoing: Regular follow-ups with your healthcare provider to monitor effectiveness and adjust treatment as needed

How long should you stay on MHT?

This is specific to the individual based on their situation and should take assessment of symptoms, benefits, and risks into account. Many women safely use MHT for many years under medical supervision. There is no age limit or maximum number of years you can use MHT.

The decision to continue, taper, or stop MHT should be personalized based on:

Your symptom severity
Your age and time since menopause
Your individual risk factors
Your quality of life goals

What are the long-term side effects of MHT?

The question of long-term safety is crucial, and the answer depends significantly on when you start MHT and your individual risk factors.

Cardiovascular risk

For women who start MHT before age 60 or within 10 years of menopause onset, the cardiovascular risk is not significantly increased compared to women not taking MHT
In fact, some studies suggest early initiation may have cardiovascular benefits by protecting arterial health during the menopausal transition
Risk increases if you start MHT at age 65 or older, or more than 10 years after menopause began

Breast cancer risk

Short-term use (under 5 years): Minimal increased risk
Long-term use (5+ years): A modest increase in breast cancer risk has been observed in some studies, particularly with combined estrogen-progestogen therapy
The absolute risk increase is small—approximately 1–2 additional cases per 1,000 women per year of use (3)
Risk decreases after stopping MHT, returning toward baseline within 2–3 years
Estrogen-only therapy carries less breast cancer risk than combined therapy

Blood clots (venous thromboembolism)

Oral estrogen slightly increases clot risk, especially in the first year
Transdermal patches significantly reduce the risk of blood clots compared to oral tablets, according to clinical guidelines (4)
Risk is highest in women with personal or family history of clots, certain genetic mutations, or immobility

Side effects that typically fade

Many women experience temporary side effects in the first few weeks that resolve as the body adjusts:

Breast tenderness
Bloating
Spotting or breakthrough bleeding (usually resolves within 3–6 months)
Nausea (often improves with adjusted dosing or formulation)

The "window of opportunity" concept

Timing matters significantly when it comes to MHT safety:

Ages 50–59 or within 10 years of menopause: MHT has a favorable benefit-to-risk profile. The cardiovascular and bone-protective benefits often outweigh potential risks for symptomatic women.
Ages 60–69 or 10+ years after menopause: The benefit-to-risk profile becomes less favorable. Starting MHT at this stage carries higher cardiovascular and clot risks with fewer protective benefits.
Age 70+: MHT is generally not recommended for new users, though some women may continue on established regimens under close medical supervision.

Monitoring your long-term safety

If you're on long-term MHT, regular check-ins with your healthcare provider are essential:

Mammography screening as recommended by your provincial guidelines
Blood pressure monitoring
Regular assessment of symptoms and side effects
Periodic review of whether MHT is still the right choice for your current health status

Take the next step with TELUS Health

Menopause is a significant life transition, but you don't have to navigate it alone. Whether you're considering hormone therapy, exploring alternatives, or simply want to understand your options, our team is here to support you.

Through the

TELUS Health Menopause Care Program

, you can:

Connect with healthcare providers who specialize in menopause care
Receive personalized treatment recommendations based on your health history
Access ongoing clinician support
Explore both hormonal and non-hormonal treatment options

Ready to take control of your menopause journey? Download the TELUS Health MyCare app and book an appointment with a menopause expert today to discuss your symptoms and create a personalized plan.
Explore the program >