Does PGD guarantee that a baby will have no birth defects or diseases?
No. Although PGD can eliminate many of the most common chromosomal and genetic defects, no test exists that can guarantee perfect health. • PGD testing is limited because only one or two cells are available for testing; and analysis must be performed very rapidly, in time for an embryo transfer within the next 48 hours. • The genetic basis for many diseases and defects is not known, or is impractical to test for. • Although many genetic diseases can be tested with PGD, not all tests can be performed on the same embryo.
