Pre-implantation genetic diagnosis (PGD) is a diagnostic procedure involving checking the genes and chromosomes of embryos created through assisted reproductive technologies. It helps couples who might have an inheritable condition to avoid passing it to their babies.
PGD may be recommended by specialists when patients have had a child with a serious genetic condition, or when they have a family history of genetic or chromosomal problems, if the maternal age is higher (40 years), or when they have ended previous pregnancies because of a genetic condition.
The procedure for PGD normally involves the following steps:
The risk associated with PGD is that there is a possibility of some embryos being damaged by the process of cell removal and that some tests may not be completely conclusive.
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