Blastocyst culture

The best embryos for all our treatments

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What is blastocyst culture?

The culture of embryos in the laboratory to bring their developmental stage up to 5 or 6 days and increase the chances of successful implantation in the uterus.

At IGIN we always culture embryos to the blastocyst stage, which is when the embryos have a larger number of cells and a more complex structure. This allows us to select those with the greatest potential and increase pregnancy rates.

Benefits of blastocyst culture

Better implantation rate. Blastocysts are embryos that have reached an advanced stage of development and suggest a higher viability and implantation potential.

Higher evolutionary pregnancy rate. Embryologists can assess their quality more accurately, aided by tools such as Artificial Intelligence.

Lower percentage of chromosomal alterations. This means a lower risk of pregnancy loss.

Better synchronisation with the uterus. Mimics the process of a natural pregnancy, making it easier for the embryo to implant.

Reduced risk of multiple pregnancy. Choosing the best embryo reduces the need to transfer several embryos to increase the chances of success.

Blastocyst culture is included in all our treatments

What results are to be expected?

Extended embryo culture is one of the reasons why our pregnancy rates exceed the national average in all treatments.

IVF-ICSI: 79% cumulative pregnancy rate per cycle
PGD: 86% cumulative pregnancy rate per cycle
Egg Donation: 88% cumulative pregnancy rate per cycle
Double donation: 88% cumulative pregnancy rate per cycle
ROPA method: 79% cumulative pregnancy rate per cycle

Any questions?

We are at your disposal to answer any questions you may have about this or other techniques and treatments. We will contact you as soon as possible.

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FAQs about blastocyst culture


What is blastocyst culture?
It is a process in which embryos are cultured in the laboratory for 5 or 6 days until they reach the blastocyst stage, a more advanced stage of embryonic development and with greater potential for pregnancy.
What is the difference between a young embryo and a blastocyst?
A young embryo has 2 to 8 cells and is cultured for 2 to 3 days, whereas a blastocyst is cultured for 5 to 6 days and has a complex cellular structure consisting of about 200 cells differentiated into two types: the inner cell mass, which will become the foetus, and the trophoblast, which will become the placenta and foetal membranes. This more complex structure gives it a greater capacity for implantation.
What are the benefits of blastocyst culture?
The main benefits include a higher implantation rate, better embryo selection and a reduction in the risk of miscarriages and multiple pregnancies.
Do all embryos reach blastocyst stage?
Blastocyst culture is more demanding for embryo development, so some embryos may not reach this stage, which may result in fewer embryos available for transfer. Embryos that do not reach this stage are usually those that would not have favourable implantation conditions.
What is the cost of blastocyst development?
At IGIN we apply this technique in all treatments that require embryo culture, and we do so at no cost to the patient.