Early menopause

Also called Premature menopause, Premature ovarian insufficiency, or POI

Early menopause is when periods stop before the age of 45. If it happens before 40, it is called premature ovarian insufficiency (POI). It can happen naturally or be caused by surgery to remove the ovaries, cancer treatment, or some genetic and autoimmune conditions.

Last updated Nov 9, 2026

What it is

Going through menopause early raises the risk of weak bones and heart disease, so hormone replacement therapy (HRT) is usually recommended until at least the average age of menopause.

Fertility is reduced, but some women with POI still ovulate occasionally. Support is available for the emotional impact.

Common signs

  • Periods becoming infrequent or stopping
  • Hot flushes and night sweats
  • Vaginal dryness
  • Low mood, anxiety and difficulty sleeping
  • Reduced sex drive

How it is usually diagnosed

  • Questions about periods and symptoms
  • Hormone blood tests (FSH) repeated over time
  • Further tests to look for a cause

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Hormone test results with dates
  • Bone density scan results
  • Your HRT type and dose
  • Gynaecology letters

Questions to ask your doctor

  • Which type of HRT is right for me, and for how long?
  • Do I need a bone density scan?
  • What are my options for having children?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • There are no emergency signs specific to early menopause; heavy or unexpected bleeding needs prompt review

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources