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Estradiol (Estrogen) is a female hormone, produced primarily in the
ovary. The amount of estrogen produced depends on the phase of the menstrual
cycle.
Men also produce estradiol, but only very small amounts.
Shortly before ovulation, estradiol levels surge and then fall
immediately after ovulation. They then rise again and remain
elevated until 2-3 days before menstruation.
- If pregnancy occurs, the estradiol levels remain elevated.
- If pregnancy does not occur, then estradiol levels fall, which, in
combination with falling progesterone levels, provoke
a menstrual flow.
Elevations found in:
- Pregnancy
- Ovulation
- Second half of the menstrual cycle
- Congenital adrenal hyperplasia
- Some hormone-producing tumors of the ovary
- Polycystic Ovary Syndrome (PCO, Stein-Levinthal Syndrome)
- Amenorrhea-Galactorrhea Syndrome
- Liver disease
Decreases found in:
- Menopause
- Pituitary failure
- Adrenal failure
- Ovarian failure
- Luteal Phase Deficiency
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Normal Values*
| Men |
13-42 pg/ml |
|
Women
(Proliferative Phase) |
60-250 pg/ml |
Women
(Luteal Phase) |
75-450 pg/ml |
Women
(Menopausal) |
<10 pg/ml |
Women
(Menopausal on
estrogen
replacement) |
50-100 pg/ml |
*These are general values taken from a variety of
sources. The actual normal values may vary from lab to lab and from one
type of testing protocol to another.

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Operational Medicine 2001
Health Care in Military Settings
Bureau of Medicine and Surgery
Department of the Navy
2300 E Street NW
Washington, D.C
20372-5300 |
Operational Medicine
Health Care in Military Settings
CAPT Michael John Hughey, MC, USNR
NAVMED P-5139
January 1, 2001 |
United States Special Operations Command
7701 Tampa Point Blvd.
MacDill AFB, Florida
33621-5323 |
*This web version is provided by
The Brookside Associates Medical Education
Division. It contains original contents from the official US Navy
NAVMED P-5139, but has been reformatted for web access and includes advertising
and links that were not present in the original version. This web version has
not been approved by the Department of the Navy or the Department of Defense.
The presence of any advertising on these pages does not constitute an
endorsement of that product or service by either the US Department of Defense or
the Brookside Associates. The Brookside Associates is a private organization,
not affiliated with the United States Department of Defense.
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