Category: Basics
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Perimenopause vs Menopause: How the Stages Are Defined
Summary: Menopause is defined in hindsight, after 12 months in a row without a period. Perimenopause is the transition before it, often lasting several years, when cycles become irregular and symptoms can begin. Postmenopause is everything after. For most people over 45, clinicians identify the stage from cycle history and symptoms rather than a single…