• This procedure only tests for a limited number of genetic disorders; thus you may still transfer a genetic problem to an embryo that PGD is unable to detect.

• PGD is not considered a routine part of IVF, and thus an extra fee will be charged for those partaking in this procedure.

• People who oppose the destruction of human embryos are typically opposed to this procedure.

• Disability rights advocates have been critical of widespread use of this procedure because they point out that the definition of disease or disorder may be somewhat subjective.

• Many people are ethically opposed to using PGD as a form of gender selection. They are also concerned that this may pave the way for even more frivolous choices, such as a future child's looks or behavioral traits.

• The PGD technique is not 100 percent accurate, and false results have been known to occur.

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