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How many months is a menopause woman not menstruating continuously? (It's 12)

According to the World Health Organization and other clinical bodies, a woman is officially in menopause after 12 consecutive months without a menstrual period. This 12-month period of continuous amenorrhea is the key diagnostic criterion used by healthcare providers to confirm the transition is complete. A woman is considered to be in the earlier phase, known as perimenopause, in the years leading up to this final menstrual period.