For informed conversations with your healthcare team. This guide is not personalised medical advice and has not been individually reviewed by a clinician.
Start with the intended benefit
An overseas clinic may offer pre-implantation genetic testing for aneuploidy, or PGT-A, after an unsuccessful cycle or because of age. The test examines chromosome numbers in cells taken from an embryo. Ask the clinician which outcome it is intended to improve for you. Reducing miscarriage, avoiding particular transfers and increasing the overall chance of a baby are different aims. HFEA evidence ratings distinguish between them and do not support treating PGT-A as a routine improvement for every IVF patient. Bring the recommendation into a full consultation before agreeing to the biopsy, laboratory fees and any additional travel.
Understand the possible reports
A result may be more complicated than 'normal' or 'abnormal'. The HFEA explains that mosaic findings and testing limitations can affect decisions about embryo use. Ask the clinic how it reports these findings and whether a genetics specialist will discuss them with you. Establish its policy before testing, including what happens to embryos with uncertain results. Ask for the original laboratory report and enough time to understand it. This matters especially when transferring between clinics, whose policies may differ. A reassuring label in a message is less useful than a documented explanation of what was tested and what remains uncertain.
Consider the whole cycle
Ask how testing could affect the number of embryos available for transfer and the chance of having none suitable under the clinic's policy. Discuss biopsy risks and the comparison with proceeding without PGT-A. Request outcome information that includes people whose treatment never reached transfer, rather than only results after a selected embryo was transferred. For a medical traveller, clarify whether testing involves freezing, a later visit and separate storage charges. Decide how results will be discussed when you are back home. The important question is whether this additional step fits your circumstances and priorities once its limitations and practical consequences are understood.
Questions to take with you
- Which outcome is PGT-A intended to improve for me?
- How do you manage mosaic or uncertain results?
- What happens if no embryo meets your transfer policy?
Sources & further reading
Further reading from the medical, regulatory and specialist organisations cited in this article.
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