Single embryo transfer is being proposed as the solution to avoid multiple
pregnancies in IVF. Nevertheless, in my opinion, although this is the right
solution, it is still not the correct one at the present time. Mainly, it
is unfair to the majority of infertile couples and it will also severely li
mit the physician's capacity to resolve unfavourable IVF cases. Furthermore
, current IVF technology is far from perfect and the impact of single embry
o transfer needs to be evaluated in patients over 38 years of age, poor res
ponders, and also in regard to blastocyst transfer and the development of p
re-implantation genetic diagnosis.