Women usually start the menopause transition, called perimenopause , in their mid-to-late 40s. Menopause itself is typically reached around age 51–52 in the U.S. , and it is confirmed after 12 straight months without a period.

Quick scoop

  • Perimenopause: often begins in the mid- to late 40s.
  • Menopause: usually happens between 45 and 55 years old , with an average around 52 in the U.S..
  • Early menopause: before 45.
  • Premature menopause: before 40.

What to watch for

Common early signs include:

  • Changes in menstrual cycle patterns.
  • Hot flashes.
  • Night sweats.
  • Sleep problems.
  • Mood changes.
  • Vaginal dryness.

Simple way to think about it

Perimenopause is the transition , while menopause is the point when periods have stopped for a full year.

If you want, I can also give you a very short “am I in perimenopause?” checklist.