During the perimenopause,
estrogenHormone replacement therapy levels do increase because the egg that begins to mature does not completely mature. It produces some
estrogenHormone replacement therapy. Because it doesn't completely develop, the next egg and the next begin, each time increasing the amount of
estrogenHormone replacement therapy produced. There is no ovulation so progesterone does not get produced. So it is
commonCommon cold in perimenopause to have increased estrogen and low progesterone. That could be what is causing your breast symptoms. You can discuss this with your doctor, have a breast exam and check blood tests for FSH and prolactin to help sort this out.
Machelle M. Seibel, MD