BLOOD TEST · SMART CARE POLYCLINIC, DEIRA
Estradiol explained
The main oestrogen, checked for cycles, fertility, menopause and hormone balance.
Order it on its own, or build your own blood test profile — 4 or more tests save up to 30–50%.
What the Estradiol test measures
Estradiol is the main form of oestrogen, made by the ovaries in women and in small amounts in men. In women its level changes through the cycle, so the day of the cycle decides how it is read; for fertility it is usually taken on day 2 or 3.
What the result tells you
With FSH on day 2 or 3
Shows how the ovaries are responding; a high estradiol can make a normal-looking FSH misleading.
Low in women
Can point to low ovarian activity, very low body weight, heavy exercise or menopause.
In men
Raised levels can explain breast tissue growth or low libido, and are read with testosterone.
How to prepare
- Fasting
- Not required
- Best time
- Women: usually day 2 or 3 of the cycle, unless the doctor says otherwise
- Worth knowing
- Tell the doctor about any hormonal contraception or HRT.
What can move the result
A result outside the usual range does not on its own mean something is wrong. These are the everyday explanations a doctor considers first.
Packages that include it
Frequently asked questions
Estradiol is the main form of oestrogen, made by the ovaries in women and in small amounts in men. In women its level changes through the cycle, so the day of the cycle decides how it is read; for fertility it is usually taken on day 2 or 3. With FSH on day 2 or 3: Shows how the ovaries are responding; a high estradiol can make a normal-looking FSH misleading.
Fasting: Not required. Best time: Women: usually day 2 or 3 of the cycle, unless the doctor says otherwise. Tell the doctor about any hormonal contraception or HRT.
Commonly: the day of the cycle; hormonal contraception or HRT; pregnancy; body weight. A single result is not a diagnosis. Values are read against the laboratory's own reference range and alongside your history, your symptoms and the rest of the panel — which is why every package includes a doctor to go through them with you.
At Smart Care Polyclinic, 29 Doha Centre, Al Maktoum Rd, Deira, Dubai. It is included in the Fertility Assessment Package, the Hormonal Panel — Female, the Hormonal Panel — Male, the PCOS Panel, or it can be ordered on its own. Walk in during opening hours or call +971 (0)4 379 3562.
Sources
Written from current guidance and reviewed 18 October 2026.
- Estrogen levels testMedlinePlus, US National Library of Medicine
- Fertility problems: assessment and treatmentNICE