Frequently Asked Questions

Women’s Wellness FAQ

Is bioidentical hormone replacement therapy (BHRT) safe?

For most women under 60 who are within 10 years of menopause, BHRT is considered safe and is associated with significant quality-of-life and long-term health benefits. The fear-based narrative from the 2002 Women’s Health Initiative (WHI) study has been largely revised — the study used synthetic Premarin and medroxyprogesterone, which we don’t use, and the average patient was 63 years old, far past the opti malwindow for starting HRT. Modern consensus (NAMS, IMS, ACOG) supports BHRT for symptom management and longevity benefit in appropriately selected patients.

What’s the difference between bioidentical and synthetic hormones?

Bioidentical hormones have a molecular structure identical to the hormones your body makes — estradiol, progesterone, and testosterone. Synthetic hormones (like conjugated equine estrogens or medroxyprogesterone) are different molecules that bind hormone receptors but behave differently in the body. Most current evidence suggests bioidentical hormones — particularly transdermal estradiol and oral micronized progesterone — carry a more favorable risk profile, especially for blood clot and breast cancer risk.

Will HRT affect my mammograms?

Some women on HRT — particularly with progestins — show slightly increased breast density on mammograms.

This doesn’t mean cancer, but it can make mammograms harder to read. We recommend annual mammograms while on HRT, and you may benefit from adding 3D mammography or breast ultrasound. We coordinate with your imaging team.

Will hormone therapy increase my breast cancer risk?

The risk picture is more nuanced than headlines suggest. Estradiol alone (used in women without a uterus) has not been shown to increase breast cancer risk — and may slightly decrease it. The small increased risk seen in older studies came mostly from synthetic progestins (not bioidentical progesterone). The absolute risk is still small — less than the increase from one daily glass of wine. Family history, breast density, and personal risk are part of our individualized decision-making. We require a recent mammogram before starting and continued screening on therapy.

How long should I stay on HRT?

The ‘use it for the shortest time possible’ advice from 20 years ago has been replaced. Current evidence supports staying on HRT as long as benefits outweigh risks — which for most women means at least 5–10 years through perimenopause and early menopause, and potentially longer when started early. Many women stay on a low-dose for life for bone, brain, and cardiovascular protection. We re-evaluate annually.

What about testosterone for women — is that safe?

Yes, at appropriate physiologic doses. Women produce testosterone too — and levels decline with age, with significant drops during perimenopause and surgical menopause. Low-dose testosterone (typically a cream or injection at about 1/10th the male dose) can dramatically improve libido, energy, muscle mass, bone density, and mood. Dr. Thomas monitors testosterone levels to keep them in the optimal female range.

How long until I notice results?

Sleep often improves within the first 1–2 weeks. Hot flashes typically calm down within 4–6 weeks. Mood and energy lift within 4–8 weeks. Libido and body composition changes take 3–6 months. Brain fog clears over 2–4 months. Full benefits usually plateau around month 6.

What if I haven’t started menopause yet — can I still benefit?

Yes. Perimenopause (typically 4–10 years before your final period) is when many women feel the most dramatic symptoms — irregular cycles, mood changes, sleep disturbance, weight changes, brain fog, anxiety. We can address these with cyclic progesterone, low-dose estradiol, lifestyle support, and sometimes low-dose testosterone — before you ever stop having periods. You don’t have to wait until you’re ‘officially in menopause’ to feel better.

Can I do HRT if I had a hysterectomy?

Yes — and it actually simplifies things. If you had a hysterectomy (uterus removed), you don’t need to take progesterone, since progesterone’s main job in HRT is to protect the uterine lining from estrogen. You can use estradiol alone, often with optional low-dose testosterone. If your ovaries were also removed, BHRT is especially important to protect long-term bone, brain, and cardiovascular health.

Do I need progesterone if I still have my uterus?

Yes. If you have a uterus and take estrogen without progesterone, the uterine lining can build up and increase your risk of endometrial cancer. Oral micronized progesterone (bioidentical) is our preferred form — it also helps with sleep and anxiety as a side benefit. We cycle it or use it continuously depending on where you are in your transition.

What about migraines with aura?

It’s a precaution, not an absolute contraindication. Estrogen, especially oral estrogen, can increase stroke risk in women with migraine with aura. We typically use transdermal estradiol (patch or cream) in these patients, which appears to have a much lower clot/stroke risk profile. Dr. Thomas individualizes the decision based on your specific aura pattern and frequency.