The Daily Telegraph this weekend reports on a new expert study which has raised fears that some clinics may be offering techniques that put the embryo at risk for their own profit.
The review, carried out by Dr Justin McCracken, the former head of the Health Protection Agency, highlighted a new technique, known as Pre-Implantation Genetic Screening (PGS), as one which is possibly being offered inappropriately for commercial reasons.
For a fee, which can run into thousands of pounds, clinics can check embryos created by a successful IVF cycle for certain genetic abnormalities and only implant those that appear normal.
The process is becoming especially popular for older couples seeking IVF, because embryos created from their sperm and eggs have a higher chance of abnormalities. As it involves the removal of a cell from an embryo (see picture) it carries some risk for the embryo being tested.