Recurrent implantation failure 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. The failure to implant may be a consequence of embryo or
uterine factors. Thorough investigations should be carried out to ascertain whether there is
any underlying cause of the condition. Ovarian function should be assessed by
measurement of antral follicle count, FSH and anti-Müllerian hormone. Increased sperm …