What Is an Estradiol Test?
Estradiol (E2) is the primary estrogen, produced mainly by the ovaries.
Normal Ranges
- Follicular: 19–144 pg/mL
- Ovulation: 64–357 pg/mL
- Luteal: 56–214 pg/mL
- Postmenopausal: below 10
- Men: 10–50 pg/mL
When Tested
- Fertility evaluation
- IVF monitoring
- Menopause confirmation
- HRT monitoring
- PCOS evaluation
Source: Endocrine Society, NLM MedlinePlus.
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