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Embryo Grade D
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Embryo Grade D

D-grade embryos present an anomalous number of asymmetrical blastomeres and a high percentage of fragmentation. Sometimes the fragments are so large that they can be confused with cells. The large amount of multinucleation is not a good prognosis, as is the thickened zona pellucida.

By BSc, MSc (senior clinical embryologist), BSc, MSc, PhD (senior clinical embryologist), MD, FACOG, FACS, FACE (reproductive endocrinologist), BSc, MSc (embryologist), BSc, MSc (embryologist), BSc, MSc (embryologist) and (invitra staff).
Last Update: 10/24/2019