Table 1. Consensus scoring system for cleavage- stage embryos (in addition to cell number) (ALPHA Scientists In Reproductive Medicine & ESHRE Special Interest Group Embryology, 2011)
Grade	Rating	Description
1	Good	< 10% fragmentation
		Stage-specific cell size
		No multinucleation
2	Fair	10 – 25% fragmentation
		Stage-specific cell size for majority of cells
		No evidence of multinucleation
3	Poor	Severe fragmentation (.25%)
		Cell size not stage specific
		Evidence of multinucleation