The hub

Perimenopause

The transition before your periods stop for good. It commonly begins in the early forties, can begin in the late thirties, and typically lasts four to eight years.

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The short answer

Perimenopause is the years leading up to your final period, when oestrogen and progesterone fluctuate rather than decline smoothly. It usually starts in the early forties, lasts four to eight years, and is when almost every symptom people call "menopause" actually happens. Menopause itself is a single day: twelve months after your last period.

Am I too young for this?

Probably not, and it is the most common thing women are wrongly told. Perimenopause commonly begins in the early forties and can begin in the late thirties. Being under 45 is not, by itself, a reason to rule it out.

AgeHow commonWhat it usually means
Under 40UncommonWorth proper assessment. Premature ovarian insufficiency exists, is treatable, and is frequently missed.
40–44CommonWell within the normal range. Frequently dismissed as too young anyway.
45–49Very commonThe most typical window for symptoms to become obvious.
50–55Very commonOften late perimenopause or the first post-menopausal years.

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