Endocrine / Hormones
Also known as: Estradiol (E2), Estrogenic Hormone, E2
No common urgent flag from this test alone
Estradiol is a main female hormone. It is found in women who can have babies. The ovaries make most of it. It helps a woman get pregnant. It releases an egg each month. It also makes the womb lining thicker. Estradiol helps your brain and bones stay healthy. Men also make a small amount in their testicles.
For women, this test helps doctors find problems like early or late puberty. It can also help with PCOS, trouble getting pregnant, and some growths on the ovaries. Doctors also use it to check treatments for infertility and hormone medicine. For men, this test helps doctors check for late puberty. It can also help with breast growth, trouble getting pregnant, problems with erections, or cancer in the testicles or adrenal glands.
Estradiol levels vary depending on a person's age, sex, and reproductive status. Ranges can differ between laboratories.
Clinical Reference
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Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.