Estradiol
Measures estradiol, the primary form of estrogen β central to reproductive health, cycle regulation and bone health in women, and relevant to men too. Results usually in 1β2 business days.
Estradiol is the main estrogen and plays a key role in the menstrual cycle, fertility, bone strength and mood. In women, levels shift across the cycle and decline around menopause; in men, it's produced in smaller amounts and still matters for health.
Included Tests
What This Panel Measures
Who Should Get This Panel
- You have irregular periods or are evaluating your cycle
- You're assessing fertility or perimenopause
- You have symptoms like hot flashes, mood changes or low libido
- You want to check estrogen as part of a hormone panel
Conditions Screened
Related Symptoms
When to Get Tested
For women, timing within your menstrual cycle affects the result, so your provider may recommend a specific day. It's often ordered alongside FSH and LH when evaluating cycles or fertility.
Understanding Your Results
Results post to your secure online account usually in 1β2 business days, interpreted against sex- and cycle-specific ranges. Because estradiol varies through the cycle, it's most meaningful alongside your other hormone results and the day it was drawn.
Frequently Asked Questions
Does the timing of my cycle matter?
Do I need to fast?
Is this billed to insurance?
Pairs Well With β Same Blood Draw
Test centers donβt accept payment β you pay securely here; the lab just does the draw.
What happens after you order?
- 1Your lab order form & test code appear in your secure online account β with your test centerβs address.
- 2We send your lab requisition to the test center electronically.
- 3Walk in & get tested β tests usually take 5 minutes or less.