Could it be as effective for women to have just one embryo implanted?
New research out this month suggests it is.
In Britain most clinics routinely put back two embryos. But doctors in Sweden who unveiled their study at the European Fertility conference believe that IVF can be just as successful with one and that avoids the risk of multiple births.
Mohammed Taranisi is director of a private fertility clinic, the Assisted Reproduction and Gynaecology Centre. He discusses the implications.
