Embryo grading is a crucial aspect of assisted reproductive technology (ART). Embryos are assessed based on their morphological features, such as blastocyst stage, expansion, and cell number. This morphological grading helps identify embryos with the highest potential for implantation and pregnancy. Additionally, aneuploidy screening, such as preimplantation genetic diagnosis (PGD), can be performed to screen for genetic abnormalities, further enhancing embryo selection and reducing the risk of miscarriage.