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BOOK TITLE: Principles and Practice of Assisted Reproductive Technology
Failure of implantation is a consequence of embryo and/or uterine factors. The exact mechanism of implantation is far from clearly understood. Recurrent implantation failure (RIF) refers to failure to achieve a clinical pregnancy after transfer of at least four good-quality embryos in a minimum of three fresh or frozen cycles in a woman under the age of 40 years. RIF is a frustrating event for both patients and their clinicians. The aim of this chapter is to condense the reported etiologies for RIF, focus on the suggested investigations to be implemented, and analyze the suggested treatment strategies.