Implantation failure is generally overlooked as a reason for not getting pregnant, but it’s something that happens when healthy embryo’s aren’t able to implant in the womb lining for some reason, and is believed to be behind about 70% of IVF failures. Implantation is a complex process, and a small percentage of women experience repeated implantation failure (RIF) which makes getting pregnant extremely difficult for them, there isn’t a formal definition, but if 10 or more high-grade embryos are transferred in 2-6 IVF cycles its more or less definite,i however in clinical practice three unsuccessful cycles involving the transfer of 1-2 reasonably good embryos merits specialist analysis.ii We cover the causes, tests and treatments currently available for implantation failure, along with how Chinese medicine (and fertility types) affect this condition, plus research on the self-help strategies that work!
14 Reasons for implantation failure:
- Alterations to the structure of the endometrial lining, which includes uterine polyps, fibroids, Asherman’s syndrome, or endometrial hyperplasia because they can physically prevent implantation.iii In up to a quarter of patients whose initial diagnosis was ‘normal’ on their first hysteroscopy or hysterosalpingogram (HSG), further examination due to RIF finds these structures and corrective surgery of large anomalies increases fertilityiv
- The endometrium is too thin as the womb lining needs to be at least 7mm on the 7th day after ovulation to support implantationv
- The blood flow in the uterine arteries is below 30 cm/s or 3.0 Pl which is the minimum that will support an