Perimenopause Guides
Clear, evidence-first guides to the years before menopause — staging, symptoms, testing and treatment.
15 Guides
PerimenopausePerimenopause Symptoms: First Signs, an Evidence-Ranked Checklist, and the Odd Ones
The first sign is usually a change in cycle length; the most common symptom is something else. A perimenopause symptom checklist, ordered by evidence.
PerimenopausePerimenopause Age: When It Starts, When Symptoms Peak, and When It Ends
Two large US cohorts put the median start near 47 — 47.5 in the Massachusetts Women's Health Study, 47.27 in SWAN. The three ages that get mixed up.
PerimenopauseWhat Is Perimenopause? Definition, Stages, Signs and Where to Start
Perimenopause is the transition to menopause — and it doesn't end at your last period. The clinical definition, the stages, and the thresholds to check.
About Perimenopause
Readers here learn to place themselves against a real staging framework rather than a symptom list, to read a lab result for what it can establish, and to arrive at a clinical conversation with better questions. Begin with the pillar guide below, then follow the links to your specific question.
Perimenopause is a defined clinical stage, not a vague label for feeling unwell in midlife. These guides start from the published staging criteria and work outward: the typical age range, how long the transition lasts, and how it differs from menopause itself — a distinction that everyday language blurs and that matters for what you do next.