Embryos can be tested before transfer when the family history or a previous result makes that useful.
Some couples are offered testing of embryos before a transfer. The aim is to look for a chromosome pattern or for a specific inherited condition already known in the family. It is an added step inside an IVF cycle, not a test done on its own.
When it comes up
It is considered with recurrent miscarriage, a previous child or pregnancy affected by a genetic condition, a known carrier result in one or both partners, or an older maternal age where chromosome screening is being discussed. It is not automatic for every IVF cycle.
What to expect
The consultation explains the difference between screening chromosomes across the embryo and testing for one named condition. A blood sample from the couple may be needed before a cycle starts. The result guides which embryo is considered for transfer. It does not guarantee a pregnancy or a child without every possible condition.
Bring with you
Any genetic reports, carrier tests, and records of previous pregnancies or affected relatives. If you do not have them, the visit still starts from the history you can tell.