Freezing all embryos in IVF- is this new normal? Embryologist Insights

One of the most common questions couples ask at Asian IVF, Indore is whether a fresh embryo transfer or a frozen embryo transfer gives better pregnancy results.

With advances in embryo freezing, many IVF centres now follow a "freeze-all" approach. However, according to Dr. Shefali Jain and the fertility team at Asian IVF, one treatment does not suit every patient.

Modern freezing techniques allow more than 90% of embryos to survive thawing. This has made frozen embryo transfer a valuable option, especially for women with PCOS, a high risk of OHSS, or patients undergoing PGT-A testing, where embryos must be grown to Day 5, biopsied, and frozen before transfer.

However, freezing is still a stress for the embryo. Not all embryos survive the freezing and thawing process, which may lead to embryo loss. For women with low ovarian reserve, advanced maternal age, or only a few embryos available, a fresh embryo transfer may sometimes be a better option.

Many patients also believe that Day 5 blastocysts are always better than Day 3 embryos. In reality, the embryo itself does not become better between Day 3 and Day 5. The main advantage of Day 5 culture is improved embryo selection. This helps embryologists identify embryos with the highest potential for implantation.

While frozen embryo transfer offers flexibility in timing and better cycle planning, it can increase treatment duration, emotional stress, and treatment costs for couples. It also adds extra workload to the IVF laboratory.

At Asian IVF, regarded by many patients as one of the best IVF centres in Indore and a leading fertility centre in Central India, every treatment plan is individualized. Some patients may benefit from fresh embryo transfer, while others may achieve better outcomes with frozen embryo transfer.

The goal is not to follow trends but to choose the approach that offers the best chance of a healthy pregnancy for each couple.

Why Has the Freeze-All Trend Grown So Rapidly?

Part of the growing popularity of the freeze-all approach comes from fertility practices in countries such as the United States, where many IVF clinics routinely perform genetic testing of embryos (PGT-A). Since embryos need to reach the blastocyst stage (Day 5) for biopsy and testing, they are usually frozen while waiting for the results. This naturally increases the use of frozen embryo transfers.

In many Western countries, there is also a strong emphasis on single embryo transfer to reduce the risk of multiple pregnancies. As a result, treatment strategies are often designed around embryo freezing and subsequent frozen embryo transfer cycles.

The Indian IVF scenario is somewhat different. PGT-A remains optional and is generally reserved for selected clinical situations such as recurrent IVF failure, recurrent miscarriage, or advanced maternal age. In addition, Indian guidelines allow transfer of more than one embryo in selected patients, depending on age, embryo quality, prognosis, and clinical judgement.

Therefore, treatment approaches that are routinely used in some Western countries may not always be directly applicable to every Indian patient. The decision between fresh and frozen embryo transfer should be individualized based on the patient's medical condition, ovarian reserve, age, embryo number, and treatment goals.

If you are planning IVF and would like to understand which option is right for you, consult the fertility experts at Asian IVF Indore for personalized guidance based on your age, ovarian reserve, embryo quality, and fertility goals.