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All You Need To Know About Embryo Freezing

  • 4.8 (5 Votes)

Embryos are frozen at any stage during IVF procedure or IVF treatment. Embryos can develop for many days before freezing during the test tube baby procedure.

 Embryo freezing is simply when the eggs are fertilized with sperm from a male partner or sperm donor prior to freezing. Any normal remaining embryos after IVF, IVF treatment, IVF procedure or test tube baby may also be frozen for implantation at a later time. 

Embryo freezing (cryopreservation) is a process for preserving the viability of embryos and be carefully cooling them to low temperatures (- 196oC). This is done in the laboratory utilizing specific freezing equipment and the embryos can then be securely put in the fluid nitrogen for augmented periods.

What is the embryo freezing process?

Embryos can be frozen at any phase of advancement amid the IVF procedure. Any normal remaining embryos after IVF, IVF treatment, IVF procedure or test tube baby may also be frozen for implantation at a later time. 

ivf treatment, test tube baby

Eggs that are fertilized can be solidified as early as 1 day after an egg recovery procedure, yet it is more typical to permit embryos to develop for various days before freezing them.

What are the benefits of Embryo Freezing?

The fundamental advantage of embryo freezing is the choice to have frozen embryos thawed and inserted into the woman's uterus later on without undergoing stimulation of the ovaries or egg recovery. Any normal remaining embryos after IVF, IVF treatment, IVF procedure or test tube baby may also be frozen for implantation at a later time.  It is additionally conceivable that there might be sufficiently frozen embryos for more than one subsequent cycle.

What are the disadvantages to embryo freezing?

Around 70% of the embryos that are frozen will survive the defrosting procedure. This does, however, shift amongst patients and it is conceivable that none of the couple's embryos will survive the freezing and defrosting process.

What does the frozen embryo transfer cycle actually involve?

Frozen embryo transfer cycles are relatively simple and basic. Sometimes, the woman's natural cycle will be checked by ultrasound to assess the development of the lining of the uterus and to determine the timing of ovulation and henceforth embryo transfer procedure starts. In different cases, contingent upon the woman's history and all the more hormonally controlled cycle may be warranted.

ivf, ivf treatment

Any normal remaining embryos after IVF, IVF treatment, IVF procedure or test tube baby may also be frozen for implantation at a later time. The choice in regards to the most fitting treatment will be made in meeting with the respected doctor.

When to go for Embryo Freezing?

The couples having infertility problems go for embryo freezing for future pregnancies. The pregnancy rates associated with replacing frozen embryos depend on the age of the patient and the quality of the embryos at the time of cryopreservation. Top-quality embryos from young patients may yield higher pregnancy rates that may exceed 50%, whereas poor-quality embryos may not even survive the defrosting process. In some clinics, more than 70% of embryos survive the defrosting cycle.

Do frozen embryos works after a couple of years?

Through a series of carefully orchestrated steps, the embryos are ultimately frozen at a temperature of –196 C, leaving them in a state of suspended animation in which they can remain for many years. Any normal remaining embryos after IVF, IVF treatment, IVF procedure or test tube baby may also be frozen for implantation at a later time.  Embryos that have been put away for over 10 years have effectively created pregnancies (albeit most patients tend to utilize their frozen fetuses inside 3 to 5 years after they are produced).

To know more about Embryo Transfer and IVF, please read our article on Embryo Transfer Procedure and IVF Procedure. In case you are looking for Gynae problems then explore our article on Best Gynecologists in Delhi NCR with highest ratings and reviews.


Dr. Srilatha Gorthi

About The Author

Laparoscopic Surgeon, Gynecologic Surgeon Dr. Srilatha Gorthi

Dr. Srilatha Gorthi is an infertility specialist and laparoscopy surgeon located in Hyderabad. Her area of expertise lies in the field of Gynae diseases and conditions, and Assisted Reproductive Technology (ART). She provides a number of services that comprise of In vitro Fertilization (IVF), Intrauterine Insemination (IUI), ICSI, TESA, MESA, Gynae Hysteroscopy, Laparoscopy, treatment of Ovarian Cysts, Endometriosis, PCOS, Fibroids, Polyps and so on. Dr. Srilatha Gorthi practices at The Birthplace Hospital, Revive Multi Specialty Clinics and Fertility Centre, and The Birthplace Clinic and has a rich experience of more than 18 years. Dr. Gorthi has won 9 Gold Medals in MBBS.She is a reputed member of the Federation of Obstetrics and Gynaecological Societies of India (FOGSI), European society of Gynaecological Endoscopy and British Medical Association, UK, and British Fertility Society. You can get her information at


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Shivami Bhattacharya

I was looking for embryo freezing IVF centers. Please suggest some best IVF centers in Kolkata.

Oct. 11, 2018, 8:56 a.m. 4.5


Hiban Seikh

I never knew that we can freeze our embryos for 10 years, it's really amazing.

Oct. 1, 2018, 4:03 p.m. 5.0


Vikash Gupta

Embryo freezing has resulted as a boon to medical science. It's answer to overpopulation as well as infertility. Thanks for enlightening us.

July 16, 2018, 2:53 p.m. 5.0


Deepa Bhola

IVF treatment optimizes the chance to conceive twins and triplets. Proper embryo freezing can gift two or three test tube babies at once.

Sept. 5, 2017, 12:38 p.m. 5.0


Rakshita Akula

It's always better to freeze the eggs several days before the IVF procedure. It elevates the high success rate of the IVF treatment.

Sept. 2, 2017, 5:19 p.m. 4.5

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