During an IVF cycle, it's common for a patient to produce more eggs than are needed for the immediate transfer. Rather than letting these extra eggs or embryos go to waste, they can be frozen, or cryopreserved, for future use. But not all freezing methods are equal. Older, slow-freezing techniques often allowed tiny ice crystals to form inside the cells, damaging their delicate structure and reducing their chances of survival.
At Rekha Sagar Fertility Centre in Karimnagar, we use vitrification, an advanced cryopreservation method that cools eggs and embryos so rapidly that they solidify into a glass-like state, bypassing ice crystal formation almost entirely. Once stored in liquid nitrogen at -196°C, all cellular activity effectively pauses, meaning the eggs or embryos can, in theory, remain viable for years.
When you're ready to try for pregnancy again, the process is simply reversed: the cells are gently thawed, and the cryoprotectant is replaced with water to rehydrate them, preparing them for transfer.
Vitrification isn't limited to any one situation. We recommend it for patients dealing with:
For many couples in and around Karimnagar, vitrification offers genuine peace of mind: it means a single stimulation cycle can potentially support more than one attempt at pregnancy, sparing you from the physical and emotional toll of repeating the earlier stages of IVF each time. Our embryology team follows strict protocols at every step, from freezing to storage to thawing, to protect the viability of every egg and embryo entrusted to us.
Vitrification is an ultra-fast freezing method that turns eggs and embryos into a glass-like state without ice crystals. They are stored in liquid nitrogen at -196°C.
Freezing may be advised if you are at risk of OHSS or have surplus good-quality embryos. It is also used if a sperm sample is unavailable on retrieval day, or if the uterus needs treatment before transfer.
Stored cells can stay viable for many years. Confirm the clinic's storage period and renewal terms at consultation.
Outcomes can be comparable in many cases. Success depends mainly on your age, embryo quality and uterine readiness, and your doctor will advise which option suits you.
Yes. Sperm freezing is useful before certain medical treatments, or when the male partner may not be present on egg-retrieval day.
It can. One stimulation cycle may give you more than one transfer attempt without repeating the early IVF steps.