When Does Menopause Begin? @DartmouthHealth
When Does Menopause Begin?  @DartmouthHealth
Uploaded April 2026 | Updated September 2026, 2 weeks ago
Kimberley Sampson, MD, explains how menopause begins. Your last period before menopause isn't the beginning, but the culmination of perimenopause, a stage of signs, symptoms, and hormone fluctuations that starts long before your last period. Menopause itself is generally defined as the twelfth consecutive month after your final menstruation and it occurs at an average age of 52. Perimenopause starts ten to fifteen years before that, but the timeline can look different for everyone. Dr. Sampson touches on common symptoms, as well as how your uterine and ovarian health history and procedures such as hysterectomy can impact the process.








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When Does Menopause Begin?

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