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What is a ESTRADIOL (E2) SERUM?

Estradiol (E2) Serum is a blood test that measures the level of estradiol, the primary form of estrogen in females and an important reproductive hormone in all sexes. Estradiol plays a role in menstrual cycles, ovulation, fertility, bone health, and sexual development. The test is needed to evaluate hormonal imbalances, menstrual irregularities, fertility concerns, ovarian function, and certain reproductive or endocrine disorders.

Additional Information

Also known as/ Other names: Serum Estradiol Test, E2 Test, Estrogen (Estradiol) Test, Estradiol, Serum/Plasma
Parameters: 1
Recommended for: M/F/Others
Sample Type: Blood
Patient Preparation: Overnight fasting is preferred
Reports: Same Day

FAQs

What is estradiol?

Estradiol, also called E2, is a major estrogen hormone. It plays important roles in reproductive development, ovulation, menstrual cycles, bone health, and other biological functions.

Can men have estradiol in their bodies?

Yes. Estradiol is present in males as well. It is produced in smaller amounts and contributes to bone health, reproductive function, and other physiological processes.

Why are estradiol levels important in females?

Estradiol helps regulate the menstrual cycle and ovulation and supports reproductive health. Levels naturally change throughout the menstrual cycle and decline significantly after menopause.

What does a high estradiol level mean?

Elevated estradiol can have different causes depending on age, sex, menstrual-cycle phase, pregnancy status, medications, and health conditions. Results should be interpreted within the appropriate clinical context.

What does a low estradiol level mean?

Low levels may occur naturally after menopause or with reduced ovarian function. They can also be associated with certain hormonal, nutritional, or endocrine conditions.

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