GW’s Embryo Grading

[Anonymous]

Does anyone know which embryo grading system GW uses?

[Anonymous]

I haven't been there in years and I don't know the exact system, but until blast, they use the number of cells and I-iii for quality, where I is the best and iii is the worst based on fragmentation, equal size of cells, etc. They grade blasts with a number and two letters similar to what is described here https://www.google.com/amp/www.inviafertility.com/blog/blog/embryology/kellyschorsch/understanding-the-blastocyst-grading-scale/%3fhs_amp=true

[Anonymous]

Anonymous wrote:I haven't been there in years and I don't know the exact system, but until blast, they use the number of cells and I-iii for quality, where I is the best and iii is the worst based on fragmentation, equal size of cells, etc. They grade blasts with a number and two letters similar to what is described here https://www.google.com/amp/www.inviafertility.com/blog/blog/embryology/kellyschorsch/understanding-the-blastocyst-grading-scale/%3fhs_amp=true

Thank you!