Hormone replacement therapy, or HRT, uses hormones such as estrogen and progesterone to treat symptoms that can happen when hormone levels fall, most often during perimenopause or menopause. It may help hot flashes, night sweats, vaginal symptoms, sleep disruption, and bone loss risk, but suitability depends on age, uterus status, symptoms, and medical history 1.
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See if you qualify →What is hormone replacement therapy?
Hormone replacement therapy is treatment with hormones that decline as the ovaries make less estrogen and progesterone. In menopause care, HRT usually refers to estrogen therapy, with progesterone or a progestin added in many patients who still have a uterus; menopause usually happens between ages 45 and 55 1.
What HRT means in plain English
During perimenopause, hormone levels can rise and fall unevenly. After menopause, estrogen and progesterone stay lower. HRT, also called menopausal hormone therapy, gives back estrogen with or without progesterone to reduce symptoms tied to that hormone shift 1.
Estrogen therapy can include estradiol, also called 17β-estradiol, or other estrogen forms such as conjugated estrogens. Progesterone may mean micronized progesterone, while a progestin is a synthetic progesterone-like medicine 1.
Why HRT is most often discussed during perimenopause and menopause
HRT comes up most during perimenopause and menopause because lower estrogen can affect temperature control, sleep, the vagina and urinary tract, and bone turnover. The FDA describes hot flashes, night sweats, vaginal dryness, painful sex, and bone thinning as common menopause-related issues that may be part of an HRT discussion 2.
Hormone therapy vs hormone replacement therapy: are they the same?
In everyday menopause care, people often use hormone therapy, HT, menopausal hormone therapy, MHT, and HRT to mean the same general idea. Some clinicians use the terms differently in special settings, such as early ovarian insufficiency, but for most patients searching menopause care, the core question is whether estrogen with or without progesterone fits their symptoms and risks 1.
What symptoms can HRT help with?
HRT has the strongest menopause-symptom role for vasomotor symptoms, which means hot flashes and night sweats. It can also be used for vaginal symptoms, sleep disruption linked to night sweats, and bone loss prevention in selected patients, while mood, brain fog, and energy need a more careful, whole-person review 1.
Hot flashes and night sweats
Hot flashes and night sweats are also called vasomotor symptoms. They happen when the brain’s temperature-control system becomes more sensitive during the menopause transition. FDA-approved menopausal hormone therapy is indicated for moderate to severe vasomotor symptoms, and estrogen is the main active hormone used for this purpose 1.
Sleep disruption linked to menopause symptoms
Sleep can worsen when night sweats wake you up, when mood symptoms overlap, or when chronic insomnia is present for other reasons. In a randomized trial of perimenopausal women with chronic insomnia, Chen and colleagues studied hormone replacement combined with escitalopram, which shows why sleep symptoms often need a broader clinical review instead of a hormones-only assumption 3.
Vaginal dryness, painful sex, and urinary discomfort
Lower estrogen can thin and dry vaginal and urethral tissues. This can cause vaginal dryness, burning, painful sex, and urinary discomfort, often grouped as genitourinary syndrome of menopause. Local vaginal estrogen is commonly used when symptoms are mainly vaginal or urinary rather than whole-body symptoms 1.
Bone loss prevention in selected patients
Estrogen helps slow bone breakdown. HRT is FDA-approved for prevention of postmenopausal osteoporosis in selected patients, but bone health decisions also depend on fracture risk, age, prior fractures, bone density testing, and other available medications 1.
Mood, brain fog, and energy: what is clear and what is less certain
Some people feel clearer or more rested when hot flashes and night sweats improve. But HRT should not be presented as a guaranteed treatment for mood, brain fog, or low energy. These symptoms can also relate to sleep apnea, thyroid disease, anemia, depression, anxiety, medications, alcohol, stress, or under-eating, so a clinician may look beyond hormones 1.
| Symptom or goal | HRT approach often discussed | Key trade-off |
|---|---|---|
| Hot flashes or night sweats | Systemic estrogen, with progesterone or progestin if the uterus is present | Benefits must be weighed against clot, stroke, breast, uterine, liver, and other personal risks |
| Vaginal dryness or painful sex without major hot flashes | Local vaginal estrogen or other local options | Targets local symptoms; not meant for whole-body symptoms |
| Bone loss prevention | Systemic HRT in selected patients | Other osteoporosis medications may be better for some patients |
| Brain fog, mood changes, or low energy | Evaluate menopause symptoms plus non-hormonal causes | Evidence is less direct; treatment depends on the cause |
What happens in the body during menopause?
Menopause is the life stage when menstrual periods have permanently stopped because ovarian hormone production has declined. The final menstrual period is confirmed after 12 months without a period when no other cause explains the bleeding pattern 4.
How estrogen and progesterone change
In perimenopause, ovulation becomes less regular. Progesterone can drop when ovulation is missed, and estrogen can swing high or low before settling lower after menopause. These shifts help explain why symptoms can come and go before periods fully stop 4.
Why lower estrogen can trigger vasomotor symptoms
Lower and changing estrogen affects brain pathways involved in heat control. The result can be a narrowed comfort zone: small body-temperature changes may trigger flushing, sweating, chills, and sleep disruption 4.
Why symptoms vary so much from person to person
Symptoms vary because hormone patterns are only one part of the picture. Genetics, body weight, smoking, stress, sleep, medications, surgery, cancer treatments, and baseline health can all affect the timing and severity of menopause symptoms 4.
What are the main types of hormone replacement therapy?
Hormone replacement therapy can be systemic or local. Systemic therapy circulates through the body; local vaginal estrogen mainly acts in vaginal and nearby urinary tissues. The route matters because oral, transdermal, vaginal, cream, and injection forms can have different risk and convenience profiles 1.
Systemic estrogen therapy
Systemic estrogen therapy is used when symptoms affect the whole body, such as hot flashes and night sweats. It may be taken by mouth or delivered through the skin, depending on the medicine and clinical plan 1.
Combined estrogen plus progesterone or progestin therapy
When systemic estrogen is used by someone with an intact uterus, progesterone or a progestin is generally added to protect the uterine lining. Without that protection, estrogen can stimulate the endometrium and raise the risk of endometrial hyperplasia and endometrial cancer 1.
Progesterone or progestin used for endometrial protection
Progesterone is not just an add-on for symptom marketing; for many patients, it is a safety step. The need depends on whether the patient has a uterus, the estrogen route and exposure, bleeding history, and clinician judgment 1. You can read more in our guide to progesterone dose for menopause.
Local vaginal estrogen therapy
Local vaginal estrogen is usually considered when symptoms are mainly vaginal dryness, painful sex, irritation, or urinary discomfort. It is not designed to treat whole-body vasomotor symptoms such as hot flashes and night sweats 1.
Pills, patches, creams, injections, and other forms: how route can matter
Route can affect convenience, hormone levels, skin reactions, bleeding patterns, and some risks. For example, professional guidance has long emphasized individualized route choice rather than one universal form for everyone 4.
Who might be a candidate for HRT?
HRT candidacy depends on symptoms, age, time since menopause, uterus status, health history, and risk tolerance. Current guidance supports individualized decision-making, especially for symptomatic patients who are younger than 60 years or within 10 years of menopause onset and do not have major contraindications 4.
Moderate to severe hot flashes or night sweats
Someone with frequent hot flashes or night sweats that affect sleep, work, or daily life may be a candidate for systemic HRT after a risk review. The discussion should include benefits, side effects, alternatives, and what follow-up will look like 1.
Genitourinary symptoms of menopause
Vaginal dryness, painful sex, recurrent irritation, or urinary discomfort can be reasons to discuss local estrogen or other treatments. If symptoms are only local, a local option may make more sense than whole-body hormone therapy 1.
Early menopause or loss of ovarian function before the usual age range
People who enter menopause early, including after surgery, chemotherapy, radiation, or primary ovarian insufficiency, may need a different risk-benefit discussion. In these cases, hormone therapy may be considered not only for symptoms but also for bone, heart, and genitourinary health until around the usual age of menopause, depending on the person’s risks 4.
Bone health considerations
Low bone density or elevated fracture risk can be part of the conversation. Still, HRT is not the only bone-health option, and clinicians may consider calcium intake, vitamin D status, resistance training, fall risk, bone-density results, and osteoporosis medicines 1.
Why timing, age, uterus status, and medical history matter
The same HRT plan can carry different risks for different people. Timing since menopause, personal clot history, breast cancer history, stroke risk, liver disease, unexplained bleeding, migraine pattern, smoking, and family history can all change the decision 1. For a broader symptom overview, see our guide to treatments for menopause symptoms.
| If this sounds like you | Sensible next step | Why |
|---|---|---|
| Bothersome hot flashes or night sweats | Discuss systemic HRT and non-hormonal options with a clinician | Systemic therapy targets whole-body vasomotor symptoms |
| Mainly vaginal dryness or painful sex | Ask about local vaginal treatments | Local therapy may target symptoms with less whole-body exposure |
| Still have a uterus and are considering systemic estrogen | Ask how the uterine lining will be protected | Progesterone or a progestin is commonly needed for endometrial protection |
| History of breast cancer, blood clot, stroke, heart disease, liver disease, or unexplained bleeding | Get individualized medical review before any hormone therapy | These histories may change whether HRT is appropriate |
| Weight gain is the main concern | Evaluate sleep, nutrition, movement, medications, metabolic labs, and menopause symptoms | HRT is not a weight-loss treatment |
3-min quiz
Considering HRT for menopause symptoms?
Chia offers a clinician-reviewed HRT for Women protocol for eligible patients. A licensed US provider reviews your health history and prescribes only when clinically appropriate; a prescription is not guaranteed. Compounded medications are not FDA-approved.
Who may need to avoid or use extra caution with HRT?
HRT is not right for everyone. People with certain cancer histories, unexplained vaginal bleeding, blood clots, stroke, heart disease, liver disease, or other risk factors may need to avoid HRT or use a more specialized plan after clinician review 1.
History of hormone-sensitive cancer
A history of breast cancer or another hormone-sensitive cancer can change the risk-benefit balance. These patients should involve their oncology team or a clinician experienced in menopause care after cancer 4.
Unexplained vaginal bleeding
Unexplained vaginal bleeding needs evaluation before hormone therapy. Postmenopausal bleeding can have several causes, including endometrial changes, and should not be treated as “just hormones” without a medical review 1.
Blood clot, stroke, heart disease, or liver disease considerations
A history of venous thromboembolism, stroke, certain heart conditions, or active liver disease may make systemic HRT higher risk. Route can matter, but route choice does not erase the need for individualized screening 1.
Migraine, smoking, and other individualized risk factors
Migraine pattern, tobacco use, blood pressure, metabolic health, family history, and current medicines can affect the safety discussion. This is why HRT should be planned with a clinician instead of chosen only by symptom lists online 1.
Why a clinician review is required before starting
A clinician review is not a formality. It is how the care team checks for contraindications, chooses a route, decides whether progesterone is needed, reviews side effects, and plans follow-up 1.
Does HRT cause weight gain?
HRT should not be framed as a weight-loss treatment, and midlife weight change is common even without hormone therapy. Menopause, aging, sleep disruption, muscle loss, insulin resistance, medications, stress, and activity changes can all affect weight and body composition over months to years 5.
Why midlife weight changes are common even without HRT
Many people gain abdominal fat or lose muscle during midlife. That pattern can happen because of aging biology, lower activity, poor sleep, and hormonal changes, not simply because of HRT 5.
What estrogen changes can do to fat distribution and insulin sensitivity
Lower estrogen after menopause is linked with shifts toward more central fat and changes in metabolic health. That does not mean estrogen is a weight-loss drug; it means weight, sleep, muscle, and menopause symptoms often need to be discussed together 5.
How to frame weight, sleep, movement, and menopause symptoms together
If weight gain is your main concern, the most useful conversation usually includes sleep quality, hot flashes, food intake, strength training, alcohol, medications, thyroid symptoms, glucose markers, and mood. If menopause symptoms are disrupting sleep, treating those symptoms may indirectly support healthier habits, but individual results vary 1.
Why are some doctors cautious about HRT?
HRT caution increased after the Women’s Health Initiative, a large trial era that changed how clinicians discussed hormone risks. The WHI estrogen-plus-progestin trial was stopped after a mean 5.2 years because overall risks exceeded benefits in that study population 6.
What changed after the Women’s Health Initiative era
The WHI estrogen-plus-progestin trial reported increased risks of coronary heart disease, stroke, pulmonary embolism, and breast cancer, along with fewer hip fractures and colorectal cancers in the studied group 6. A separate WHI estrogen-alone trial in women with prior hysterectomy reported increased stroke risk and no coronary heart disease benefit during the intervention period 7.
Why older trial findings may not apply equally to every patient
WHI included many participants older than the average age of natural menopause. Current menopause guidance emphasizes age, time since menopause, formulation, route, and personal risk rather than applying one rule to every patient 4.
How current labeling and guidance emphasize individualized decisions
The FDA has announced changes to remove broad boxed-warning language about cardiovascular disease, breast cancer, and probable dementia from menopausal hormone therapy labels while keeping the endometrial cancer boxed warning for systemic estrogen-alone products 2. That does not mean HRT has no risks; it means the risk discussion should be more specific.
What risks still need to be discussed
Risks to discuss can include breast symptoms or breast cancer risk, uterine bleeding, endometrial cancer risk with unopposed systemic estrogen, blood clots, stroke, gallbladder disease, liver disease, migraine changes, and medication interactions. Side effects can include breast tenderness, nausea, bloating, headache, mood changes, skin reactions, or irregular bleeding 1.
How does HRT at Chia work for eligible patients?
Chia’s HRT care is an online, clinician-reviewed path for eligible patients with menopause or perimenopause symptoms. The HRT for Women protocol includes estradiol oral plus progesterone IR and currently starts at $119/mo; a licensed US provider prescribes only when clinically appropriate, and a prescription is not guaranteed.
Chia’s HRT for Women protocol: estradiol oral plus progesterone IR
At Chia, the HRT for Women protocol is designed around estradiol and progesterone for patients who meet clinical criteria. This fits the standard menopause-care concept that systemic estrogen is often paired with progesterone for people who need endometrial protection 1.
Estradiol and progesterone options available through Chia
Chia also offers estradiol as cream, injection, and transdermal patch options, with estradiol injection plans currently starting at $109/mo. Chia offers progesterone as cream and injection options, with progesterone injection plans currently starting at $109/mo.
| Chia option | Forms listed in Chia’s catalog | Current starting price listed |
|---|---|---|
| HRT for Women protocol | Estradiol Oral + Progesterone IR | From $119/mo |
| Estradiol | Cream, injection, transdermal patch | Injection from $109/mo |
| Progesterone | Cream, injection | Injection from $109/mo |
Online questionnaire, licensed US provider review, and no guaranteed prescription
The process starts with a short online health questionnaire. A licensed US provider reviews your symptoms, medical history, medications, and risk factors, then prescribes only if treatment is clinically appropriate. Patients can message their care team through the patient portal between visits.
Compounded medications from state-licensed 503A pharmacies
When prescribed through Chia, medications are compounded in the US by state-licensed 503A compounding pharmacies and shipped to the patient’s door. Compounded medications are not FDA-approved, even when they contain ingredients similar to FDA-approved therapies, and certain compounded forms or uses may be off-label depending on the product and indication.
When to use the eligibility quiz or discuss care with a clinician
The eligibility quiz may be a reasonable next step if you have bothersome menopause or perimenopause symptoms and want a clinician-reviewed online evaluation. If you have heavy bleeding, unexplained bleeding, chest pain, stroke symptoms, new severe headache, or shortness of breath, seek urgent care rather than starting with an online HRT visit.
How should someone prepare for an HRT conversation with a clinician?
Preparing for HRT helps your clinician match the plan to your symptoms and risks. Before the visit, track symptoms for 2 to 4 weeks, write down bleeding patterns, and gather your medical history, family history, medicines, and past hormone use 1.
Symptoms to track before the visit
Track hot flashes, night sweats, sleep, vaginal dryness, painful sex, urinary symptoms, mood changes, headaches, bleeding, and what makes symptoms better or worse. Note how symptoms affect work, relationships, exercise, and sleep.
Medical history and family history to share
Share any history of breast cancer, uterine cancer, ovarian cancer, blood clots, stroke, heart disease, liver disease, migraine with aura, high blood pressure, smoking, gallbladder disease, endometriosis, fibroids, and unexplained bleeding. Also share family history of breast cancer, clotting disorders, early heart disease, or osteoporosis 1.
Questions to ask about estrogen, progesterone, route, dose, and follow-up
- Do my symptoms sound like menopause, perimenopause, or something else that needs testing?
- Do I need progesterone or a progestin with estrogen based on my uterus status?
- Which route makes sense for me: oral, transdermal, local vaginal, cream, or another form?
- What side effects should I watch for, and what symptoms should make me call right away?
- How will we decide whether the plan is working?
- When should follow-up happen?
When to ask about non-hormonal options
Ask about non-hormonal options if you are not a candidate for HRT, prefer to avoid hormones, have mild symptoms, or have symptoms that may come from another cause. Non-hormonal prescription options, behavioral sleep treatment, vaginal moisturizers, pelvic floor care, and lifestyle changes may be appropriate depending on the symptom 4. You can also compare broader options in our guide to hormone replacement therapy for menopause.
When should you get help now?
Urgent symptoms should not wait for a routine hormone visit. Seek urgent medical care for severe chest pain, shortness of breath, one-sided weakness, face drooping, trouble speaking, sudden severe headache, severe allergic reaction, fainting, or heavy or unexplained vaginal bleeding 1.
Also contact a clinician promptly if you start HRT and develop new leg swelling or pain, new breast lump, yellowing of the skin or eyes, severe mood changes, worsening migraines, or bleeding after menopause. Side effects are not always dangerous, but new or severe symptoms deserve review 1.
3-min quiz
Start with a clinician-reviewed HRT visit
If menopause or perimenopause symptoms are affecting your sleep, comfort, or daily life, Chia can help you complete an online evaluation for the HRT for Women protocol. A licensed US provider reviews your information and prescribes only when clinically appropriate; prescriptions are not guaranteed, and compounded medications are not FDA-approved.
FAQ
Possible signs include bothersome hot flashes, night sweats, sleep disruption linked to sweating, vaginal dryness, painful sex, urinary discomfort, or menopause-related bone loss risk 1. These symptoms do not automatically mean you need HRT, but they are good reasons to discuss options with a clinician.
Hormone therapy raises or supplements hormone levels that have fallen during perimenopause or menopause. Systemic estrogen can reduce hot flashes and night sweats for many patients, while local vaginal estrogen mainly targets vaginal and urinary tissues 1. Side effects and risks vary by person, route, and medical history.
Some people can, but it depends on uterus status and the estrogen plan. People who have had a hysterectomy may not need progesterone. People with an intact uterus generally need progesterone or a progestin with systemic estrogen to protect the uterine lining 1.
No. HRT is often discussed for hot flashes and night sweats, but it may also be relevant for vaginal symptoms, painful sex, urinary discomfort, and bone loss prevention in selected patients 1. The best option depends on which symptoms are present.
Some patients notice changes in hot flashes or night sweats within weeks, while vaginal and sleep-related symptoms may take longer and may need follow-up adjustments 1. The timeline depends on the symptom, route, dose, and whether another condition is also contributing.
Yes, HRT can be prescribed online when a licensed clinician can safely evaluate the patient and prescribing is clinically appropriate. At Chia, patients complete an online questionnaire, a licensed US provider reviews the information, and a prescription is not guaranteed.
No. Compounded HRT medications are not FDA-approved, even when they contain ingredients similar to FDA-approved therapies. They should be prescribed by a licensed clinician and prepared by a state-licensed 503A compounding pharmacy when clinically appropriate.
Contact your prescribing clinician if you have side effects such as bleeding, breast tenderness, nausea, headache, mood changes, skin reactions, or symptoms that worry you. Seek urgent care for chest pain, shortness of breath, stroke-like symptoms, severe allergic reaction, or heavy or unexplained vaginal bleeding 1.
References
- 1.Harper-Harrison G, Shanahan MM. Hormone Replacement Therapy. StatPearls. 2026.
- 2.U.S. Food and Drug Administration. HHS Advances Women’s Health, Removes Misleading FDA Warnings on Hormone Replacement Therapy. 2026.
- 3.Chen H, Wu S, Chen H, et al. Efficacy and Safety of Hormone Replacement Combined With Escitalopram in the Treatment of Chronic Insomnia in Perimenopausal Women: A Randomized Controlled Trial. CNS Neuroscience & Therapeutics. 2025.
- 4.The North American Menopause Society. The 2022 Hormone Therapy Position Statement of The North American Menopause Society. Menopause. 2022.
- 5.Lovejoy JC, Champagne CM, de Jonge L, Xie H, Smith SR. Increased Visceral Fat and Decreased Energy Expenditure During the Menopausal Transition. International Journal of Obesity. 2008.
- 6.Writing Group for the Women’s Health Initiative Investigators. Risks and Benefits of Estrogen Plus Progestin in Healthy Postmenopausal Women: Principal Results From the Women’s Health Initiative Randomized Controlled Trial. JAMA. 2002.
- 7.Anderson GL, Limacher M, Assaf AR, et al. Effects of Conjugated Equine Estrogen in Postmenopausal Women With Hysterectomy: The Women’s Health Initiative Randomized Controlled Trial. JAMA. 2004.
- 8.Crandall CJ, Hovey KM, Andrews CA, et al. Breast Cancer, Endometrial Cancer, and Cardiovascular Events in Participants Who Used Vaginal Estrogen in the Women’s Health Initiative Observational Study. Menopause. 2018.
- 9.Lethaby A, Ayeleke RO, Roberts H. Local Oestrogen for Vaginal Atrophy in Postmenopausal Women. Cochrane Database of Systematic Reviews. 2016.
About this article
Chia Health Editorial Team — Evidence-reviewed health education
This article is for educational purposes only and is not a substitute for individualized medical advice. Talk to a licensed clinician before starting, stopping, or changing any prescription.
AI tools may assist with research and drafting. Chia's editorial team reviews source use, clarity, treatment information, and safety framing before publication. A clinician is named only after explicit sign-off. Read our editorial standards.
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