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Estrogen test

Estrogen Test
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Why is an estrogen test done?

A test for estrogen is done to:

  • Help find fetal birth defects (especially Down syndrome) during pregnancy. When the test for estriol is done with hormone inhibin A, alpha-fetoprotein (AFP), and human chorionic gonadotropin (hCG), it is called a quad screen test. Other blood tests and fetal ultrasound may be done as well.
  • Check for estrogen-producing tumors of the ovaries in girls before menstruation starts and in women after menopause.
  • Help explain enlargement of breast tissue in men (gynecomastia). This test can also help find out if there are estrogen-producing tumors growing in the testicles.
  • Monitor treatment with fertility medicines.

How is an estrogen test done?

A health professional uses a needle to take a blood sample, usually from an arm.

How do you prepare for an estrogen test?

You do not need to do anything special to prepare for this test.

What do the results of an estrogen test mean?

Results are usually available within 24 hours.

Normal

For girls and women between puberty and menopause, estrogen levels vary throughout the menstrual cycle.

Each lab has a different range for what's normal. Your lab report should show the range that your lab uses for each test. The normal range is just a guide. Your doctor will also look at your results based on your age, health, and other factors. A value that isn't in the normal range may still be normal for you.

Many conditions can change estrogen levels. Your doctor will talk with you about any important abnormal results as they relate to your symptoms and past health.

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 puberty.

Low values

Low values may be caused by:

  • Problems with ovarian function. This can be caused by a failure of an ovary to develop properly (Turner's 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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The content above contains general health information provided by Healthwise, Incorporated, and reviewed by its medical experts. This content should not replace the advice of your healthcare provider. Not all treatments or services described are offered as services by us. For recommended treatments, please consult your healthcare provider.