The endometrium can be stimulated either naturally, by the woman’s ovarian estradiol, or artificially, by applying estradiol usually in the form of tablets or transdermal patches to obtain adequate endometrial lining thickness by ultrasound measurement. Unless a woman ovulates, the hormone progesterone is administered by the woman vaginally or by intramuscular injection to achieve optimal endometrial preparation for embryo implantation. Alternatively, following natural ovulation, the woman’s ovaries produce progesterone to accomplish this same purpose toward embryo transfer. Either natural or artificial method occurs without regard to the number of embryos planned for transfer.
Does the number of embryos transferred have an influence on the endometrial preparation process?
By Mark P. Trolice M.D., F.A.C.O.G., F.A.C.S., F.A.C.E. (reproductive endocrinologist).
Last Update: 09/13/2018
Mark P. Trolice
M.D., F.A.C.O.G., F.A.C.S., F.A.C.E.
Mark P. Trolice is the Director of Fertility CARE – The IVF Center and Clinical Associate Professor in the Department of Obstetrics & Gynecology (OB/GYN) at the University of Central Florida College of Medicine. He is Board-certified in REI and OB/GYN, and maintains annual recertification. His colleagues select him as Top Doctor in America® annually, one among the top 5% of doctors in the U.S.
License: ME 78893