How Long After Transfer Is Implantation (And Why)?

Exact Answer: After 1 to 6 days

The blastocyst transfer is an embryo transfer in which it involves transferring of one or more embryos those of which are at a very improved state of the stage in development. This is the so-called blastocyst stage. This is mainly initiated or done only on either the fifth or the sixth day after the follicular aspiration.

And just after the doctors make sure the egg removal process from the respective ovary or the follicular aspiration process is done finely. Then after that, they get fertilized in the laboratory. It mainly gets accomplished through either by the most normally operated Vitro Fertilisation (IVF) or by another process or means which is known as the intracytoplasmic Sperm injection(ICSI).

How Long After Transfer Is Implantation?

Minimum Time Taken for ImplantationAfter 1 day
Maximum Time Taken for ImplantationAfter 6 days

So what happens is that when the eggs reach the embryology lab the staff present over there thoroughly analyses the eggs for their intact maturity. And then after that those eggs now get placed into an incubator that has a similar environment.

Normally, the sperm which is ejaculated from the male human body gets stuck with the eggs in the ovary of the female human. Which is the well-known process of fertilization; that takes place naturally. Apart from all, some abnormal situations are also present. Where the sperm count is insufficient and the factor motility rate of the sperm is also very less. Which decides lots of outcomes. In some cases, a fully matured egg received a sperm cell directly through injection. Avoiding all the middle procedures the egg received the sperm instantly, this subtle process is typically known as intracytoplasmic sperm injection.

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Following the process, fertilization of the egg and the sperm on an average required minimum 18 hours and maximum 20 hours. Certain things are there to determine whether the process of fertilization took place or not. It took a couple of days to develop into the next established phase. By this one can keep an eye if the embryo is on the verge of optimal development or not. In some cases the embryos are also kept in the labs for further observation almost for a week.

Mostly if we take a figure, then 80 percent of the current patients cycle the PGS. The lab fertilized embryos are mostly done. And the embryo at this stage is looked after whether the integrity of the chromosomal of the embryos is done or not. So ,it makes the embryo transfer possible after 1 to 5 days. 

Why Is Implantation So Long After Transfer?

So before proceeding further into this acclaimed topic, a thing must be made clear that all the statements made or facts and figures given are only based upon some thorough research about the topic including mere assumptions. So now as already, we have answered how long it will take for the implantation after an embryo transfer.

But now after this, another will get raised in your mind. Why will it take this long period for an embryo transfer after implantation? As it needs valid reasons to justify why it takes this long. So let’s go through the seasons ahead.

So, during the process of the embryo transfer, the doctor initially tries to figure out the total embryos that need to be produced and also  the quality of each and every one. After that a whole team of physicians and biologists focus on trying to specify on which embryos should be initiated to get  transferred and at what point of time. It is for the fertility centre specialties to decide how many embryos need to be fertilized and transferred. So that number of births or multiple births are in control.

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As per a report, more than 70 percent of the embryo transfers performed, out of them a single embryo gets placed into the uterus. Within a couple of days the blastocyst starts hatching out to the world. By the next day, the blastocyst initiates to deeply attach into the uterine lining by which the implantation begins. Throughout day 4 the implantation continues and by day precisely or sometimes by day six due to some complications the implantation gets complete. 

Conclusion

So at last it gets clear how long and why this long after a blastocyst or an embryo transfer does the implantation take place and under what circumstances. Starting from day one to day five or six is too crucial to handle. So it is to be looked after with utmost care.

This embryo or blastocyst transfer is a very sensitive matter and this is due to the next important thing which is implantation. The doctors also need to be quite vigilant during this transfer process because after that when the implantation process will be initiated and nothing left to be done. And doctors around the world are making it quite easy due to their long practice in this field.

Reference

  1. https://onlinelibrary.wiley.com/doi/abs/10.1002/(SICI)1098-2795(199602)43:2%3C167::AID-MRD5%3E3.0.CO;2-P
  2. https://academic.oup.com/humrep/article-abstract/10/11/3018/674332
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