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Endometrial receptivity array test
The endometrial receptivity array (ERA) test is for individuals undergoing in vitro fertilisation (IVF) treatment.
It helps fertility doctors assess the womb lining, also known as the endometrium, and determine the best time for embryo implantation.
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What is the ERA test?
Endometrial receptivity array (ERA) testing is a genetic analysis to determine when it is best to carry out an embryo transfer to achieve a pregnancy. However, it is important to note that there remains inconclusive evidence to support the use of ERA testing.
The test allows the fertility doctor to analyse the endometrium, which is the inner lining of the womb that thickens during the menstrual cycle in preparation for implantation. From this, they can determine whether the issues with the lining may be contributing to miscarriages or unsuccessful in vitro fertilisation (IVF) treatments.
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What is the ERA process?
The ERA process is carried out during the menstrual cycle and there are different steps involved.
If necessary, the patient will be prescribed medication to help enhance the lining of the womb and will be monitored through blood tests and ultrasounds. The medication can be given in tablet form.
The fertility doctor will then perform a biopsy of the endometrium by inserting a small catheter into the womb cavity. The result will determine whether the endometrium is receptive to an embryo implanting. From this, the patient will undergo a personalised embryo transfer at the optimal time during the implantation window, to help increase the chance of conceiving.
Patients undergoing an ERA test can experience some cramping after it is completed. To help with the discomfort, you can take paracetamol beforehand. There is also a small risk of infection and bleeding, which will be discussed with you before your testing. If you have any concerns, your consultant will be there to provide you with the advice and guidance you need.
Who should have an ERA test?
An ERA test is recommended for individuals who have had failed embryo transfers or multiple unsuccessful IVF treatments.
However, your consultant will discuss whether you require an ERA test and if it will be beneficial for you.
Contact your local clinic to book your first consultation today. Rest assured, our fertility experts will be by your side, every step of the way.
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Reviewed by Justin Chu, Medical Director at TFP Oxford Fertility.
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