G RADING OF EMBRYOS
Grade 1: Equal size of blastomeres with no
fragmentation seen
¢ Grade 2: Equal or irregular blastomere with not more
than 10% fragmentation
¢ Grade3: More than 10-50% of fragmentation with
unequal blastomeres
¢ Grade 4: Fragmentation or loss of more than 50%
blastomeres but with at least one viable blastomere.
¢