What do your estradiol levels mean?
The short answer
Nobody we follow has said what your estradiol should be. It comes up in the interviews we follow, but never with a number.
For estradiol, the range shifts with cycle phase and menopause. Read yours against the range printed on your own report.
A typical lab range is 30–400 pg/mL.
Labs print different ranges by sex: about 30–400 pg/mL for women and 10–40 for men.
What estradiol measures
The main form of estrogen.
It drives the menstrual cycle and affects bone, mood and cardiovascular tissue in both sexes.
Checked against MedlinePlus — Estrogen Levels Test.
What changes your estradiol?
About where you are in your cycle.
“rising it has a little bit of a peak just before ovulation estrogen really Rises now so Peak estradiol occurs right at or just before ovulation”
About women in perimenopause, the years before menopause.
“estrogen levels start dropping during perimenopause and perimenopause can actually last several years before menopause”
About women from midlife on.
“And unfortunately, women starting in midlife experience very strong and very sharp declines in the levels of estradiol.”
About men as they age.
“as men age test testosterone goes down a little bit estrog increases”
About men and women.
“by the way yes men have estrogen they just have lower levels than women and yes women have testosterone just lower levels than men”
About the time of day.
“because all of our hormones flux through the day and so you have to look at where's the peak of cortisol how does estrogen flux how does lutenizing hormone flux”
About women on the birth control pill.
“when you're on the birth control pill your ovaries aren't making estradiol and that estradiol is important in growing the uterine lining”
About vaginal estrogen.
“absorbed amount vaginally is so little that your estrogen level barely goes up. It doesn't even reach premenopausal levels. So it just goes up very slightly in the bloodstream, not enough to create any sort of abnormality”
About stress.
“it can be because of stress cortisol will increase estrogen levels certain uh environmental toxins will do that as well”
“the molecule cholesterol can be converted into testosterone or estrogen but there's a competition whereby the cholesterol will turn into cortisol and not test testosterone or it'll turn into cortisol and not estrogen if stress levels are too high”
About sleep.
“getting proper sleep can um really offset all the reductions in testosterone and estrogen and reductions in fertility that occur if we don't get enough sleep”
Common questions
What is a normal estradiol level?
The normal range for estradiol depends on cycle phase and menopause. Read your number against the range printed on your own report. The quotes on this page say what moves it.
What does your estradiol number mean?
Where it sits against the range your own report prints next to it. Nobody we follow has drawn a tighter line inside that range.
What does the estradiol test measure?
The main form of estrogen. It drives the menstrual cycle and affects bone, mood and cardiovascular tissue in both sexes.
Why is there no target here?
Because nobody we follow has named a number for estradiol. If that changes, it will be here.