Glossary · Definition · v2026.3
What Is Implantation Failure?
Implantation failure refers to the situation where a transferred embryo does not successfully attach to or invade the uterine lining, thus not resulting in a clinical pregnancy.
Clinical significance
Repeated implantation failure can signal underlying biological or uterine factors, prompting clinicians to investigate and potentially modify treatment protocols in IVF or fertility care.
Common confusion
It is often assumed that every failed IVF cycle is due solely to poor embryo quality, but uterine factors and immunological or hormonal conditions can also contribute to implantation failure.
Related reference
Used in
This content defines terminology for educational orientation. It does not constitute medical advice.
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