Transcriptomic Profile of Endometrium in Different Histological Dating of Hormone Replacement Cycle

According to the histological dating and transcriptomic profile of endometrium of hormone replacement cycle in control group, to explore the effectiveness of intervention by advanced or delayed personal embryo transfer . The establishment of standard control group: Frozen embryo transfer patients according to the inclusion and exclusion criteria were evaluated for histological dating and transcriptomic profile by endometrial biopsy on day P＋7 in an HRT cycle. After routine time transfer in the frozen embryo transfer cycle, the standard of histological dating and transcriptomic profile were determined according to the pregnancy outcome of the FET cycle .