When Does Menopause Start?
On average, women are 51 at natural menopause, notes the National Institute on Aging. But menopause can start earlier or later. A few women start menopause as young as 40, and a very small percentage as late as 60. Women who smoke tend to go through menopause a few years earlier than nonsmokers. There is no proven way to predict menopause age. It's only after a woman has missed her periods for 12 straight months, without other obvious causes, that menopause can be confirmed.