Women's Hormone Health

Perimenopause

The years before menopause can bring the most confusing symptoms — and they often start earlier than women expect. You don't have to wait until menopause to feel supported.

  • Typical onsetLate 30s to 40s
  • HallmarkIrregular, unpredictable cycles
  • Hormone patternFluctuating, often low progesterone
  • Help available?Yes — before menopause is reached

What perimenopause is

Perimenopause is the transition leading up to menopause, when ovarian hormone production becomes erratic. It can begin in the late 30s or 40s and last several years. Because hormones swing up and down rather than simply declining, symptoms can be unpredictable — and are frequently mistaken for stress, thyroid issues, or mood disorders.

The signs of perimenopause

The first clue is usually a change in your cycle — periods that become irregular, heavier, lighter, or closer together. Alongside that, women often notice hot flashes, night sweats, sleep disruption, anxiety or mood swings, brain fog, and lower libido. Progesterone is often the first hormone to fall, which can drive sleep and anxiety symptoms early on.

How we support perimenopause

Treatment is tailored to your pattern. Progesterone often helps with sleep and anxiety early in the transition; estrogen addresses hot flashes and other symptoms as levels decline; and testosterone can help energy and libido. We confirm the picture with lab work and adjust as your body changes.

Frequently Asked Questions

Can I be in perimenopause if I'm still getting periods?
Yes — irregular but continuing periods are the defining feature of perimenopause. You can have significant symptoms while still menstruating.
How is perimenopause different from menopause?
Perimenopause is the transition with fluctuating hormones and irregular cycles; menopause is the point after 12 months with no period. Treatment approaches overlap but are tailored to the stage.
Do I need treatment, or should I just wait it out?
That's your choice. If symptoms are affecting your sleep, mood, or quality of life, support can make a real difference — there's no need to simply endure it.
Will hormone therapy help my mood and sleep?
Often, yes — particularly when low progesterone is driving anxiety and poor sleep. We match the hormone and dose to your specific symptoms.
Can perimenopause be managed by telehealth?
Yes — evaluation, labs, and prescriptions are handled by video statewide, plus in person at both clinics.
Is birth control the same as hormone therapy?
No. While some women use low-dose birth control during perimenopause, bioidentical hormone therapy uses hormones identical to your body's and is dosed differently. We'll discuss which fits.

Clinical references: The Menopause Society · ACOG

Related Hormone Care

Something Feels
Off — Earlier Than Expected?

Perimenopause can start years before menopause. If your cycles, sleep, or mood have shifted, let's look at your hormones. Book a consultation to get answers.

Available across California via telehealth · in-person in Chatsworth & Santa Barbara.

Medically reviewed by Carolyn Pampalone, MSN, FNP-BC · Last reviewed October 2026