What Is a Normal Estrogen Level?
Estrogen levels are measured in picograms per milliliter (pg/ml) of estradiol, the predominant sex hormone found in women.
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Identification
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For most women, the normal level of estrogen falls in the 50 to 400 pg/ml range of estradiol. This level will fluctuate depending on what stage the woman is in of the menstrual cycle.
Types
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Women who have undergone menopause will have different levels of estradiol than those who have not. The common level of post-menopausal women is 10 to 20 pg/ml.
Effects
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If a woman's estradiol level is below 100 pg/ml, she may experience menopausal symptoms such as hot flashes.
Time Frame
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Estrogen levels are at their highest in the cycle just before the woman ovulates. Levels will fall dramatically then, stimulating ovulation.
Considerations
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If a woman does not become pregnant following ovulation, estrogen levels will fall again, this time triggering a period.
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