Why Day-5 Blastocyst Transfer Delivers 25% Higher Implantation than Day-3 Cleavage Embryos

In natural conception, an embryo spends its first 3 days traveling down the fallopian tube and reaches the uterine cavity only around Day 5 as a blastocyst containing over 100 cells.

Transferring at the blastocyst stage aligns physiological timing with the receptive endometrium and eliminates embryos that arrest due to paternal or maternal chromosomal defects.

Our tri-gas incubators replicate the exact oxygen-depleted 5% O2 physiological environment of the human reproductive tract.