Estrogen does more than you think
Estrogen is best known for its role in reproduction, but your body has estrogen receptors almost everywhere: in the brain, skin, bones, joints, gut, blood vessels and vaginal tissue. That’s why changes in estrogen can be felt in so many different ways.
Perimenopause: the rollercoaster
In the years leading up to menopause, usually starting in your 40s, estrogen doesn’t simply drop. It rises and falls unpredictably from month to month, sometimes higher than ever and sometimes very low. Progesterone declines too. These swings are why symptoms can come and go, and why this stage can feel so confusing.
Menopause and after: a 65–90% drop
Menopause is reached 12 months after your final period, on average around age 51. Around this time, estradiol, the main form of estrogen, falls fast. One 15-year study found average levels dropped by about two-thirds in just the four years around the final period. Once things settle, estradiol is typically 65% to 90% lower than in the reproductive years.
65–90%lower estradiol after menopause compared with the reproductive years
Some changes ease with time, while others, like effects on skin, bone and vaginal tissue, tend to continue.