Bypassing the natural method of conception
The creation of life in the laboratory
Fertilization of more embryos than will be needed
Discarding of excess embryos
Unnatural environment for embryos
Use of untested technology
Not affordable for many
Misallocation of medical resources
Creation of embryos, then freezing them, and keeping them "in limbo"
Exposure of embryos to unnatural substances
Destruction of embryos in research
Potential to create, select and modify embryos
Facilitation of the idea that embryos are commodities
Financial rewards for IVF doctors dissuade them from recommending other methods to couples
Infertility is treated as a disease and not as a symptom of underlying medical problems