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Interpret Your Estradiol (E2) Results
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Estradiol (E2) Normal Ranges
Estradiol (E2) is the most potent and predominant form of estrogen in reproductive-age women, produced primarily by ovarian follicles.
| Age Group | Sex | Reference Range | Unit | Notes |
|---|---|---|---|---|
| Adults (18–64) | Female | 30 – 400 | pg/mL | Follicular phase |
| Adults (18–64) | Female | 0 – 30 | pg/mL | Post-menopause |
| Adults (18–64) | Male | 10 – 50 | pg/mL | — |
Also reported in: pmol/L.
Common Causes of High E2
Ovarian follicular cystsOvarian stimulation during IVFObesity (peripheral aromatization of testosterone to estradiol)
Common Causes of Low E2
Menopause (natural or surgical)Premature ovarian insufficiency (POI)Hypothalamic amenorrhea (exercise, eating disorders, stress)
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