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Should we transfer only one embryo?

Newcastle Fertility Centre at Life, International Centre for Life, Newcastle upon Tyne NE1 4EP, UK. email: a.p.murdoch{at}ncl.ac.uk

IVF treatment usually involves the transfer of more than one embryo, since there is a positive relationship between the number of embryos transferred and the pregnancy rate. The disadvantage of this is the unacceptable rate of multiple pregnancy. Initial regulations in the UK have restricted the number of embryos that can be transferred to three and following professional advice this is being reduced to a maximum of two. The debate is now focussing on whether or not this regulation should be reduced further to just one embryo. Such a decision cannot be separated from the problems caused by the lack of NHS recognition of the physical and psychological pathologies associated with infertility.

Keywords Keywords / embryo transfer / infertility / in vitro fertilisation (IVF) / multiple pregnancy