Oestradiol is one of the body’s main forms of oestrogen.
This test measures your oestradiol (E2) level, a hormone commonly assessed as part of fertility, menstrual cycle, menopause, and hormone health reviews.
The result provides a snapshot of your oestradiol level at the time of testing.
You might consider this test if you’re reviewing your hormone health, tracking your menstrual cycle, planning pregnancy, using hormone replacement therapy, or have been advised to check your oestradiol level.
- Prepare for your test by following these instructions.
- Take this test two to five days after the start of your period, ideally on day three if you\’re taking this test to learn more about your fertility.
- It can be taken any time if you do not have periods.
- Avoid taking a finger-prick sample from a finger used to apply hormone gels/pessaries/patches in the past 4 weeks.
- Use gloves to apply these.
- Do not take biotin supplements for two days before this test, discuss this with your doctor if it is prescribed.
- Hormonal contraception can affect the results of this test.
- Taking a break from this and waiting for your periods to restart before your blood test will give more accurate results.
What’s included:
- Professional blood sample collection
- Blood test kit included
- Laboratory testing by a UKAS-accredited UK laboratory
- Personalised doctor-reviewed report
- Results usually available within 4-5 working days
- Clinic and mobile appointment options available
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Your phlebotomist will make sure you are comfortable before starting and explain what will happen.
The blood draw itself usually takes only a few minutes. Most people describe the feeling as a small scratch or pinch.
We will check that you feel well before you leave. If you are nervous about blood tests, have difficult veins or have fainted before, please tell us so we can support you during your appointment.
You can book an appointment at our Swindon clinic or choose a mobile visit at your home or workplace.
Mobile appointments are available across Swindon and surrounding areas. Travel fees may apply outside Swindon.
Preparation depends on the test you have chosen.
Some tests need no special preparation. Others may need fasting, a certain time of day, or changes to supplements before your appointment.
Any specific instructions will be shown with your test and sent to you when you book.
It can also help to stay well hydrated before your blood draw unless your test instructions tell you otherwise.
After your blood draw, keep the plaster or dressing in place for around 30–60 minutes.
A small amount of tenderness or bruising can sometimes happen afterwards and usually settles within a few days.
Try to avoid heavy lifting with that arm for at least a few hours after your blood draw. If you notice a small bruise, a cold compress may help.
If you feel unwell or have concerns after your appointment, please contact us.
Yes. This appointment is suitable if you already have a blood test kit or blood request form and simply need a qualified phlebotomist to collect your blood sample.
Yes, please send us a screenshot of your blood form or the instructions included with your test kit before your appointment. This allows us to check the samples, tubes and any additional requirements in advance.
Please bring your blood request form or complete blood test kit with you. If you have already sent us the information beforehand, bringing the original documents or kit instructions is still recommended.
Yes, we can provide centrifuging for suitable tests, but this is an additional service and must be booked where required. Please send us your blood form or test kit instructions in advance so we can confirm exactly what your test requires.
Still got questions?
Visit our Health Hub for more information or get in touch.