Bath Fertility Centre

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Experts creating families

Embryo grading

Assessing embryo ‘quality’

Embryo ‘quality’ in IVF treatment can be assessed when the fertilised egg (zygote) has divided from a single cell into an embryo containing multiple cells.

Grading score

Your embryos are graded according to their appearance and are given a score that relates to their development at the time of assessment. This helps us select which of your embryo(s) have the best potential to implant and establish a pregnancy.

The assessment is carried out early in the morning to help us select those embryos making fastest progress, which, provided within normal range, is a good indicator of developmental potential.

Numerous studies have shown that those embryos with a  better score have more chance of implanting.