According to recent studies, performing the biopsy on day 5 should not affect the implantation rate of the embryo. This study confirms that when the biopsy was conducted on day 3, it reduced the implantation rates by 40%. However, this does not occur with the blastocyst, which is the standard procedure carried out nowadays. Indeed, we don’t know if this could lead to any future problems in babies because these procedures are relatively modern. The oldest baby born after PGT-A on day 5 could be around 17 or 18 years old. However, in terms of damaging the embryo and reducing pregnancy rates, so far, there is no evidence that this technique can decrease it.
