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Menopause

Perimenopause: recognising the change

Perimenopause is the natural transition in the years before periods stop for good. Hormone levels start to fluctuate, and this can bring a range of changes.

This page explains what perimenopause is and the common early signs, so you can recognise the change.

Key points

  • Perimenopause is the transition leading up to menopause.
  • It can begin years before periods finally stop.
  • Cycles and symptoms often become less predictable during this time.
  • It's a natural stage, and support is available if symptoms bother you.
Last reviewed 27 June 2026

What perimenopause is

Perimenopause is the phase before menopause, when the ovaries gradually make less oestrogen. It can start in your 40s (sometimes earlier) and last for several years. Menopause itself is confirmed once you've gone 12 months without a period.

Common early signs

Signs vary widely between people, and not everyone has the same experience.

  • Changes to the length or heaviness of periods
  • Hot flushes or night sweats
  • Sleep changes
  • Mood or memory changes
  • Vaginal dryness or changes to libido

Why cycles become less predictable

As hormone levels fluctuate, ovulation becomes less regular, so periods may come closer together, further apart, or vary in flow. This is a normal part of the transition, though any bleeding that seems unusual is worth reviewing.

When to see a specialist

If symptoms are affecting your daily life, or you're unsure whether what you're experiencing is perimenopause, a specialist can help you understand what's happening and talk through your options.

Frequently asked questions

Sources & further reading

This page is structured around information from reputable Australian health bodies:

Related articles

More plain-language reading from Dr Sivadas.

Noticing signs of perimenopause?

Appointments are managed on the practice site.

Consulting locations

Parramatta

Monash IVF

Level 2, 1 Fennell Street
Parramatta NSW 2151

Bella Vista

Norwest Private Hospital

Suite 106, 11 Norbrik Drive
Bella Vista NSW 2153

Penrith

Somerset Specialist Centre

Level 3/38 Somerset St
Penrith NSW 2747