Many conditions can change
estrogen levels. Your doctor will discuss any significant abnormal
results with you in relation to your symptoms and past health.
High values may be caused by:
Low values may be caused by:
Problems with ovarian function, which 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.
problem with the fetus or placenta during pregnancy.
What Affects the Test
Reasons you may not be able to
have the test or why the results may not be helpful include:
Hormone therapy after menopause. Birth control pills, patches, or
rings and other forms of hormonal birth control.
Having a test that
uses a radioactive substance, such as a
bone scan, within 1 week before the
test. Medicines, such as clomiphene or steroids
(for example, prednisone).
High levels of sugar in the urine caused
What To Think About
Blood estrogen levels are a more accurate
indicator of how well the ovaries are working than urinary estrogen
Tests that measure blood levels of progesterone,
luteinizing hormone, and follicle-stimulating hormone are often used to study
the problems that can affect fertility and the menstrual cycle.
In some cases a
combination of screening tests is done in the first trimester to look for
Down syndrome. The first trimester screening often
combines ultrasound measurement of the thickness of the fetus's neck (nuchal
translucency) and measurements of hCG and a protein called pregnancy-associated
plasma protein A to check for problems. To learn more, see the topic
Birth Defects Testing. The level of estriol in the blood is often used in a
maternal serum triple or quadruple screening test. To learn more, see the topic
Triple or Quad Screening for Birth Defects.
WebMD Medical Reference from Healthwise
March 12, 2014
This information is not intended to replace the advice of a doctor.
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