BACKGROUND: To evaluate whether progesterone-induced changes in endometrial thickness (EMT) affect singleton infant outcomes during frozen-thawed embryo transfer (FET) cycles. METHODS: This retrospective study analyzed 6,331 singleton live…
BACKGROUND: In clinical practice, scheduling oocyte retrieval is a challenging issue that requires comprehensive consideration of factors such as the woman's age, ovarian response, hormone levels and other variables. Moreover, there is curr…
BACKGROUND: Clomiphene citrate effectively suppressed the negative feedback of estrogen on the hypothalamus and induces premature luteinizing hormone (LH) surge during controlled ovulation stimulation, while obese women often have impaired …
STUDY QUESTION: Which specific groups of women would not benefit from repeated frozen embryo transfers (FETs)? SUMMARY ANSWER: Women over 45 years of age should stop treatment after three FET attempts due to the absence of further benefits…