Hormone replacement therapy (HRT) involves supplementing estrogen — and in many cases progesterone — to address the sharp decline that occurs during perimenopause and menopause. It remains the most effective treatment for vasomotor symptoms like hot flashes and night sweats, and the evidence for its benefits has accumulated significantly since the early 2000s.

Who Is a Candidate?

Women typically enter perimenopause in their mid-40s, though symptoms can begin earlier. The average age of menopause in the US is 51. HRT is most commonly considered when symptoms start to interfere with quality of life: sleep disruption, mood changes, brain fog, vaginal dryness, or joint pain.

Types of HRT

Estrogen-only therapy is used after hysterectomy — there is no need for progesterone if the uterus is gone. Combined estrogen-progesterone therapy is used when the uterus is intact; progesterone protects the uterine lining from overgrowth.

Delivery methods include patches, gels, vaginal creams, and oral tablets. Each has a different risk profile. Transdermal (patch or gel) delivery is generally considered lower risk for blood clots compared to oral forms.

What the Research Says

The Women's Health Initiative study published in 2002 created lasting fear around HRT. Subsequent reanalysis revealed that the risks — primarily breast cancer and cardiovascular events — were overstated for the typical patient and apply most strongly to women who started HRT after age 60 with pre-existing health conditions.

For healthy women under 60 starting HRT within 10 years of menopause onset, the benefits (symptom relief, bone density protection, possible cardiovascular protection) generally outweigh the risks for most patients. The key variable is timing.

Risks and Monitoring

HRT is not appropriate for women with a history of breast cancer, liver disease, or unexplained vaginal bleeding. All patients on HRT should have regular check-ins — typically every 6–12 months — that include breast exams and monitoring of any new symptoms.

Bioidentical hormones (structurally identical to what your body produces) are available through certified pharmacies and are considered equally effective and safer than older synthetic formulations. Ask your provider specifically about their hormone sourcing and compounding practices.

Taking the Next Step

If you are in your 40s and experiencing symptoms that could be hormonal — especially if they are disrupting sleep or mood — book a consultation. A qualified provider will run labs, review your history, and discuss whether HRT is appropriate for your specific situation. Treatment is not one-size-fits-all, and the right protocol makes all the difference.