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Blastocyst Transfer

All About Blastocyst Transfer

What is a Blastocyst Transfer?

Blastocyst Transfer is the process of transferring an embryo that is in its last stage of development. In this stage, the embryo is of about 100-120 cells and is called a blastocyst. In the transfer process, an embryologist chooses the best blastocyst for transferring it into the women’s uterus during an IVF procedure.

Blastocyst transfer has many benefits over transferring embryos like it increases pregnancy chances in an IVF procedure. Once the blastocyst transfer has been done, the blastocyst gets implanted on the uterus wall and a woman becomes pregnant after that.

Everything You Need to Know About Blastocyst Transfer

Why is it | How Quick | Success Rate | Blastocyst Has Implanted

Why is a blastocyst transfer important?

As multiple embryos are formed in an IVF procedure, it is beneficial for doctors to choose the best embryo for transfer. This is done by monitoring the growth of all the embryos. By allowing all the embryos to grow from the stage or day 3 (cleavage stage) to the stage or day 5/6 (blastocyst) allows the doctor to select the embryos that have the highest chance of success. The embryos that don’t reach the stage of the blastocyst are likely to die and not result in a pregnancy.

Whereas healthy embryos that reach the blastocyst stage are likely to result in a healthy pregnancy. Also, embryos that continue to grow to the blastocyst stage have a lower rate of chromosomal errors and therefore a higher chance of resulting in a healthy baby. Transferring fewer embryos greatly reduces the risk for twin or triplet pregnancies and the associated risks.

In old IVF techniques, embryologists used to transfer the embryo to cleavage stage 2 or 3 (grown in a lab for 2 /3 days) and wait for it to grow into blastocysts in the uterus itself. But in modern and advanced IVF practices, a blastocyst is transferred in the uterus so that it is fully ready to get implanted on the walls of the uterus.


Sub Treatments For IVF

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How quickly does a blastocyst implant?

During an IVF procedure, the blastocysts normally hatch out of the shell and start getting to implant after 2 days of the blastocyst transfer. This means that the implantation takes place about 7 to 8 days after the fertilization of the sperm and the egg.

What is the success rate of blastocyst transfer?

With the help of transferring blastocysts into the uterus, the chances of pregnancy have also risen up. Choosing to transfer a blastocyst over stage 2 or 3 of the embryo has shown positive results in IVF cases. In the women below the age of 30, the success chances are 50% whereas in women above 30 these chances become 35-40% in a blastocyst transfer. The success rate of blastocyst transfer also differs for different women has every woman has different medical conditions. Read our post on ‘How to make IVF a success for the first time?

At Gunjan IVF World our success rate with Blastocyst transfer is as high as 70%, though individual variations can occur due to patient factors. 

How do you know if a blastocyst has implanted?

After a blastocyst has been transferred, some women may notice signs and symptoms that implantation has occurred. These implantation signs may include cramping, light bleeding, bloating, nausea, headaches, sore breasts, mood swings, and changes in basal body temperature. But these are not mandatory symptoms and may differ from person to person.

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Our Expert Team

Dr. Gunjan Gupta Fertility and IVF Specialist in Delhi

Dr. Gunjan Gupta Govil

Founder & Director

Founder, Director & Gynaecologist with specialization in IVF, Infertility & Laparoscopy of 20+ years of experience.

(20+ years of experience)

Dr. Gunjan Gupta Fertility and IVF Specialist in Delhi

Dr. Pradyot Kumar

CEO, Founder

Founder, CEO and a specialized Neurosurgeon who is an expert in complex Brain and Spine surgeries.

(25+ years of experience)

rmo at gunjan ivf world

Mr. Gaurav Singhai

COO at Gunjan IVF World

COO and an entrepreneur who co-founded Gujan IVF world along with Dr Gunjan and Dr Pradyot.

(5+ years of experience)

embryologist at gunjan ivf world

Paritosh Sarkar


He is a highly experienced and successful Embryologist with more than 10 years of experience in IVF.

(10+ years of experience)

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Patient Guide

Along with treating our patients, we also guide them with the help of our educational blogs and videos.

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Why do blastocyst not implant?

Why do blastocyst not implant?

The reasons for an unsuccessful implantation are very uncommon and rare as well. Blastocyst provides a greater chance of becoming pregnant therefore the procedure is handled properly as well.

What happens after blastocyst transfer?

What happens after blastocyst transfer?

Before jumping to the immediate question first let’s have a small brief of what is blastocyst transfer. Blastocyst transfer is the transfer of embryos that have achieved a higher stage of development.

Can blastocyst fall out?

Can blastocyst fall out?

Maximum patients worry about what they can do or cannot do after an embryo transfer. They have the fear that if they do something wrong, the embryo would not attach or fall out.

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Why Doesn’t IVF Have a 100% Success Rate?

Why Doesn’t IVF Have a 100% Success Rate?

IVF is an advanced reproductive treatment in which we fertilize an egg in the lab and then transfer it to the woman’s uterus for pregnancy. The success rate of IVF treatment is approximately 60%. So why isn’t it a hundred percent?

How Much Does IVF Cost?

How Much Does IVF Cost?

IVF is a popular infertility treatment that is helping thousands of couples conceive. However, many couples have a misconception that IVF is a costly procedure and they can’t afford it.

Difference between IUI, IVF and ICSI?

Difference between IUI, IVF and ICSI?

IUI stands for Intrauterine insemination or also known as artificial insemination. In this method, semen is washed and placed inside the uterine cavity so once the ovulation occurs or the egg is released the sperm will fertilise the egg.

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