This video shows
what the embryologist looks for in the IVF laboratory
under the microscope on Day 1, to confirm that the eggs
have been fertilised. This is the "moment of truth" -
and there's always a little bit of suspense when
checking to see if the sperm have been able to fertilise
the egg or not ! If there is no fertilisation, this is
called total failure of fertilisation; and may means
that there is a problem with the eggs; the sperm; or the
IVF laboratory. Most eggs will fertilise normally in a
good IVF lab. These will have 2 pronuclei when examined
on Day 1. In this video, the egg has been fertilised
abnormally. It has 3 pronuclei; and this means it has an
abnormal number of chromosomes and will not be
transferred.
