Answer by Dr. Jessica Farnsworth, MD, Nebraska
There are several moral issues with in vitro.
First of all, the child is created outside the womb by human devices as a sperm and a harvested egg are combined. Second, many children (embryos) are created and some are frozen for later use while several are placed in the mother's womb. The survival for these embryos is low, sometimes quoted around 25%. So in essence, multiple children are created, knowing that most of them will not live. Some physicians only place 2-3 embryos in the mother, hoping that one or all of them will survive. Other physicians place more embryos in the mother, and if too many live, they then abort the "extras" and leave a more "manageable" number of embryos in the womb.
The frozen embryos have an uncertain fate. Some of them remain frozen for an inestimable period of time, children that have been created and then frozen! Does it seem right to create life and then leave it? Some of the frozen embryos may be thawed later for a repeat cycle of IVF, and most do not survive. In some cases embryos are donated to other couples or some may be donated for research (i.e.: killing them in the name of scientific study).
The overall problem with IVF is that it destroys life as it creates life. Meaning, the chance of one child surviving carries with it the necessity of many other children (embryos) having been created and then dying. So for the one surviving child, many other children have been given life (combining sperm and egg) with the knowledge that most of them won't make it.