The real difference between perimenopause and menopause

Perimenopause and menopause aren't the same thing. They're stages — and the management differs.

Perimenopause

The transitional phase before menopause. Periods become irregular as ovarian function declines but hasn't stopped. Hormone levels (oestrogen, progesterone, FSH) fluctuate dramatically — which is why symptoms in perimenopause can be more chaotic than in menopause itself. Average duration: 4 years, but anywhere from 2 to 10.

Menopause

Defined retrospectively as 12 consecutive months without a period. Average age in Australia is 51. Once you're past menopause, hormone levels stabilise (at low) — symptoms often plateau, but vasomotor and urogenital symptoms can persist for years.

Post-menopause

The decade or two after menopause. Bone density, cardiovascular risk, urogenital health, and cognition are the long-term considerations. Hormone therapy started within the first decade of menopause has a different risk-benefit profile than therapy started later.

Why the distinction matters

Treatment regimens differ. Perimenopausal hormone therapy needs to account for residual ovarian function and the possibility of pregnancy. Post-menopausal therapy is simpler. Bone-density screening becomes routine post-menopause. Some symptoms (heavy bleeding, mood swings) are more typical of perimenopause; others (vaginal dryness, urinary urgency) often emerge years later.

This is general health information and not medical advice. Your doctor will discuss your specific situation during a consultation.