About Our Estradiol Test
Note: Fasting is not required for this test.
The test measures the amount of the hormone estradiol in the blood. Estradiol, a form of estrogen and in women, is mostly released from the ovaries and adrenal glands.
This test is the most common way to measure levels of estrogen for non-pregnant women.
In women, estradiol plays a key role in:
- Growth of the uterus, vagina and Fallopian tubes
- Changes of the outer genitals
- Breast development
- Distribution of body fat
In men, small amounts of estradiol is released by the testes to prevent sperm from dying prematurely.