A blastocyst is an embryo that consists of more than 100 cells. It is at the blastocyst stage of development (5 days after fertilization) that an embryo would normally move out of the fallopian tube and into the uterus. Once in the uterus, the blastocyst starts to attach to the uterine lining in a process known as implantation. Using newly developed culture media, a higher implantation rate has been observed by some scientists following transfer of blastocysts (50%), compared to day 3 (25%) embryo transfer. However we believe that correct preparation of the uterine lining is more important than the stage at which the embryos are transferred.
Elaine AckrilUK My sincere and heartfelt gratitude to Treatment- trips and it has been almost 5 months since I did my procedure. I feel wonderful with my new flat tummy. The compliments that I have received from my family, friends and co-workers instill th...