Before another cycle after poor blastocyst development, the highest-value move is a structured review of your blastulation rate and the factors around it — not repeating the same plan. The checklist below organizes the evidence-based work-up into embryo, sperm, and lab buckets so a chromosome-driven pattern is distinguished from a fixable sperm or culture issue….
A single poor-blastulation cycle is easy to read as “my eggs are bad” — but egg quality is a population concept, not a label for one cycle. One cycle with zero blastocysts could be a stochastic aneuploid embryo, a suboptimal culture day, or genuinely low competence; only a pattern across cycles, read with age, tells…
Recurrent implantation failure (RIF) means a competent embryo repeatedly fails to attach and establish a pregnancy. A common working definition is the failure to achieve a clinical pregnancy after transferring good-quality embryos across at least three IVF/ICSI cycles — often cited as 10 or more good embryos — in a woman under 40 (Coughlan et…