Estrogens
Estradiol, Estriol
Results
An estrogen test measures the level of the most important estrogen hormones (estradiol, estriol, and estrone) in a blood or urine sample.
Results are usually available within 24 hours.
Normal
For girls and women between puberty and menopause, estrogen levels vary throughout the menstrual cycle. Normal values may vary widely from lab to lab.
Estradiol
Women before menopause:
30–400
110–1,468
Women after menopause:
0–30
0–110
Men:
10–50
37–184
Children:
0–15
0–55
Estriol in pregnant women 1st trimester:
Less than 38
2nd trimester:
38–140
3rd trimester:
31–460
Many conditions can change estrogen levels. Your health professional will discuss any significant abnormal results with you in relation to your symptoms and medical history.
High values
High values may be caused by:
- Ovarian stimulation used to treat infertility (for example, before in vitro fertilization).
- Cancer, such as cancer of the ovaries, testicles, or adrenal glands.
- Serious liver disease (cirrhosis).
- A pregnancy with more than one fetus, such as twins or triplets.
- Early (precocious) puberty.
Low values
Low values may be caused by:
- Problems with ovarian function, which can be caused by a failure of an ovary to develop properly (Turner syndrome) or because of a drop in pituitary gland activity.
- Anorexia nervosa.
- Menopause.
- A problem with the fetus or placenta during pregnancy.
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| Author: | Maria G. Essig, MS, ELS Carrie Henley | Last Updated: August 6, 2007 |
| Medical Review: | Patrice Burgess, MD - Family Medicine Kirtly Jones, MD - Obstetrics and Gynecology Andrew Swan, MD, CCFP, FCFP - Family Medicine | |
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| Topic Contents | |
| Test Overview | |
Health Tools  | |
| Why It Is Done | |
| How To Prepare | |
| How It Is Done | |
| How It Feels | |
| Risks | |
 | Results |
| What Affects the Test | |
| What To Think About | |
| References | |
| Credits | |