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Hi Peter,

hope you are enjoying your break. Wonder if you could answer some questions about egg quality when you get back.

(1) Can you test for egg quality and if so how?

(2) If you have high rate of fertilisation then does this suggest egg quality is not a big problem?

(3) Do embryos with better cell division mean a better liklihood of pregnancy?

(4) How many cells is normal after 2 days?

(5) If embryos are 2 rather than 4 cells after 2 days does this also show a possible problem with egg quality?

(6) If embryos are only 2 cells after 2 days would it be better to do transfer on day 3 when they may be 4 or 8 cells?

Many thnaks for your help.

Love Allison
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Please see my comments in your text:

AllisonT said:
Hi Peter,

hope you are enjoying your break. Wonder if you could answer some questions about egg quality when you get back.

(1) Can you test for egg quality and if so how?

No. it's all done on appearance

(2) If you have high rate of fertilisation then does this suggest egg quality is not a big problem?

yes

(3) Do embryos with better cell division mean a better liklihood of pregnancy?

Overall yes although there are many exceptions to this rule.

(4) How many cells is normal after 2 days?

Textbooks say 4-8 cells

(5) If embryos are 2 rather than 4 cells after 2 days does this also show a possible problem with egg quality?

No, it shows that the embryo is dividing slowly and the problem may be on the maternal, paternal or both sides.

(6) If embryos are only 2 cells after 2 days would it be better to do transfer on day 3 when they may be 4 or 8 cells?

Yes, it is a good idea to wait and see if the embryos are going to go beyond the 2 cell stage as there is a process called the 2 cell block where embryos do not divide beyond 2 cells.

Good questions!!

Peter

Many thnaks for your help.

Love Allison
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