Description
Why It’s Done
Doctors may order an estrogen test to:
• Evaluate menstrual or fertility issues, such as irregular periods, amenorrhea (absence of menstruation), or infertility.
• Assess symptoms of menopause or perimenopause.
• Monitor hormone replacement therapy (HRT) or treatments affecting estrogen levels.
• Diagnose hormonal imbalances, including conditions like PCOS (polycystic ovary syndrome) or estrogen-secreting tumors.
• Investigate developmental delays or early/late puberty in children.
• Monitor pregnancy, particularly with estriol (E3) levels.
• Assess gynecomastia or low testosterone in men.
Preparation
• No fasting is typically required, but follow any specific instructions from your doctor.
• Inform your doctor about any medications, especially hormonal therapies, birth control pills, or supplements, as these can affect estrogen levels.
• In women, the test may be scheduled at a specific point in the menstrual cycle to ensure accurate interpretation.
• A blood sample is most commonly used and collected from a vein in the arm
