Endometrial Receptivity Analysis (ERA) test

What is the Endometrial Receptivity Analysis (ERA) test

The Endometrial Receptivity Analysis (ERA) test is a pioneering new method of assessing when the endometrium (womb lining) is most receptive. This allows Clinicians to personalise the timing of embryo transfer to maximised chances of implantation.

Receptivity of the endometrium is a crucial factor in determining the success of IVF treatment. During IVF treatment, Clinicians have to estimate when the endometrium has reached the optimal time to introduce the embryo into the womb based on ultrasound scan results. This method does not always account for the differences in individual cycle patterns which means that not every woman’s endometrium will be at its most receptive at the same time. Three in every ten patients have displaced window of implantation.

By taking a small biopsy of the endometrium, the ERA test allows the analysis of 236 genes, to look for the genes that are vital to implantation that should be ‘switched on’ when the lining is receptive to receive an embryo. This then allows the timing of embryo transfer to be altered and personalised according to the ERA result to maximise the outcome.

This test has shown not to discriminate between fertile and infertile patients and it does not guarantee a successful outcome after personalised embryo transfer.

What are the advatages of ERA?

Until recently there has been no way of accurately assessing whether the endometrium is at its most receptive. Scientists now know that certain genes are ‘switched on’ when the endometrium is receptive and they can pinpoint these genes and check whether they are ‘switched on’ or not. This gives a good idea of whether the endometrium is ‘pre-receptive’, receptive’ or ‘post-receptive’. It gives specific personalised information regarding the optimal time for embryo transfer and increases chances of successful embryo transfer and of achieving high success rates.

It is particularly useful for women with repeated implantation failure as a displaced window of implantation is detected in approximately 25% of these patients.

How and when is ERA performed?

The ERA test will be carried out in the month prior to the treatment cycle, and the results will determine the exact timing of the embryo transfer in the month of treatment. The results are vaild for up to 2 years.

To perform ERA it is necessary to take an endometrial biopsy from women in their natural cycle or hormone replacement therapy cycles, at a time corresponding to the phase of endometrial receptivity.

The endometrium is receptive when it is ready for the embryo implantation. This occurs around days 19-21 in each menstrual cycle of a fertile woman. This period of receptivity is called the window of implantation.

During a natural cycle this occurs seven days after the LH (Lutenising Hormone) surge OR after five full days of progesterone supplementation in Hormone Replacement Therapy (HRT) cycles. After the biopsy is taken it is immediately introduced into a tube, which contains fluid to preserve the tissue, and sent to IGENOMIX Laboratory in America for testing.

When will I recieve my results?

Once the sample is received by IGENOMIX, it takes 7-10 working days for the results to be available. Your results will be sent to you, and if requested your clinic, via email.

How do I book an Endometrial Receptivity Analysis (ERA) test?

Cherish-UK is a private pregnancy and fertility scanning clinic, you can self refer and arrange an appointment at your convenience. To book an Endometrial Receptivity Analysis (ERA) test please telephone us on 0121 354 4777 or 07580 611 879, fill out our online enquiry form or email us at info@cherish-uk.com

Endometrial Receptivity Analysis (ERA) test


ERA Test


Credit Card payments welcome

Payment is required by cash or card on arrival at the clinic. We do not accept cheques.


Cancellation Policy

Please be aware that Cherish UK has a 24 hour notice cancellation policy. If you do not attend on the day and have not made contact to cancel your appointment we reserve the right to charge the full fee.


Ovulation Calculator & Fertility Calendar

Are you trying to get pregnant & wondering when am I most fertile? or when do I ovulate?
With our ovulation calculator and fertility calendar you can identify your most fertile days and increase your chances of getting pregnant.



Credit Card payments welcome

Payment is required by cash or card on arrival at the clinic. We do not accept cheques.

Cancellation Policy
Please be aware that Cherish-UK has a 24 hour notice cancellation policy.

If you do not attend on the day and have not made contact to cancel your appointment we reserve the right to charge the full fee.

Early Pregnancy & Fertility Scan Fees

Our early pregnancy & fertility scan fees cover all aspects of your appointment which will include the following:

  • Full Consultation
  • Transabdominal Scan or Transvaginal Scan
  • Black and White Scan Image(s)
  • Scan Report

Please Note: It may be necessary for both a transabdominal and transvaginal scan to be performed. If this is the case then no extra charge is made.


Monday - Saturday



Sunday 9.30am - 12pm



Baby Gender Scan or Sexing Scan Fees

A gender scan, also called a sexing scan will determine the sex / gender of your baby. This scan can be performed between 16-20 weeks of your pregnancy.


Monday - Saturday



- Twin Pregnancy



Sunday 9.30am - 12pm



- Twin Pregnancy



Special Offer Scan Packages

1. Early Pregnancy Scan Offer
Buy one Early Pregnancy scan for £80, any other 2D pregnancy scans within the same pregnancy at intervals of your choice up to 30 weeks will be charged at £60 each.


2. Follicle Tracking Scans Package
This will include 3 follicle tracking scans on alternate days within the same cycle for £200, any further tracking scans within the same cycle will be charged at £50 each. PLEASE NOTE: The Follicle Tracking Scans Package is not available for patients having IVF monitoring.

UK / Overseas Fertility Clinics

Cherish-UK has links with fertility clinics both abroad and in the UK and provides fertility scanning services for patients undergoing fertility treatment. Please take a look at the fertility clinics we are linked with.

Cherish UK Standards of Care

Located in Birmingham, West Midlands

Cherish-UK is centrally located in Sutton Coldfield, Birmingham, West Midlands, close to Birmingham City Centre having easy access from Birmingham, Tamworth, Erdington, Great Barr, Lichfield, Burntwood, Aldridge, Walsall, South Staffordshire, Derbyshire and Nottinghamshire.

Situated within a short walk from Sutton Coldfield train station, there are regular rail connections to Birmingham's New Street Station. See contact us for further information.