Endometrial injury and rFSH before frozen-thawed embryo transfer: a case report.

Hormonal treatment as endometrial preparation for frozen-thawed embryo transfer (FET) is routinely carried out with oral, transdermal or combined estradiol supplementation; however, in some cases, there is no optimal endometrial development with this type of stimulation. In this case report, our patient failed to respond to conventional endometrial preparation techniques. For this reason, two unconventional techniques were combined to improve endometrial receptivity; endometrial injury, followed by rFSH administration.