To conduct a multi-center, randomized, controlled clinical study aimed at formally evaluating the impact of pressing therapy on the success rate in patients with recurrent implantation failure.
Meets the criteria for RIF diagnosis (≥ 2 instances of unsuccessful transfer of high-quality embryos).
Age: 20 to 40 years old.
Planning for a cycle involving the transfer of frozen-thawed embryos (FET).
Possession of a transplantable D3 frozen embryo (≥6 cells) or a frozen blastocyst (≥3BC).
Individuals planning to undergo preimplantation genetic diagnosis (PGD).
Recipients of egg donations.
Chromosomal abnormalities in either spouse or one partner (excluding chromosomal polymorphisms).
Patients with known embryo-related factors leading to implantation failure.