A female asked:
what is perimenopause a what age can start?
1 doctor answer

Dr. Bruce Young answered
58 years experience Obstetrics and Gynecology
It's premenopause: It usually starts @45-50 with missing or irregular periods. Ovulation stops & fsh & estrogen fluctuate until the ovaries no longer respond to fsh. Periods stop & when there are no periods for 1 year that's menopause.
Answered on Mar 26, 2013
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