Main circulating oestrogen in premenopausal women, produced by ovarian granulosa cells. Rises in the follicular phase, peaks at ovulation. Used in IVF monitoring and for menopausal assessment.
| Sex | Age | Range | Notes |
|---|---|---|---|
| Female | 18–50 yrs | See notes | Female varies by cycle: follicular 92–1270; mid-cycle 734–2198; luteal 74–786; postmenopausal <73 |
| Female | ≥ 50 yrs | < 73 | Postmenopausal |
| Male | ≥ 18 yrs | 41 – 159 | Adult male |
⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.