Egg freezing, also known as oocyte cryopreservation, is a fertility-preservation technique in which mature eggs are collected from the ovaries and rapidly frozen for potential use at a later stage.
For some women, egg freezing can provide an opportunity to preserve eggs at a younger age when they may have greater reproductive potential. It may be considered for personal, medical or reproductive-planning reasons.
At Miraai Fertility, Seawoods, Navi Mumbai, egg freezing is approached as an individualised fertility-preservation decision. Dr. Priya Khamatkar, Fertility Specialist and Director, evaluates your age, ovarian reserve, medical history and future reproductive plans before discussing whether egg freezing may be appropriate.
Book a fertility consultation to understand your fertility-preservation options.
Egg freezing is a process in which mature eggs are retrieved from the ovaries and preserved at very low temperatures for possible future use.
Modern egg freezing commonly uses a rapid-freezing method called vitrification. This technique cools the eggs quickly to minimise the formation of ice crystals that could damage cellular structures.
When a woman is ready to use her frozen eggs, they can be thawed and fertilised with sperm in a laboratory. In appropriate cases, the resulting embryo can then be transferred to the uterus.
Egg freezing preserves eggs; it does not guarantee a future pregnancy. The likelihood of success depends on several factors, particularly the woman's age when the eggs were frozen and the number and quality of mature eggs available.
Women may consider egg freezing for different personal and medical reasons:
Some women may wish to postpone having children because of education, career, relationships or other personal circumstances. Freezing eggs earlier may provide an option to preserve eggs for potential future use.
Certain medical treatments, including some cancer treatments, can affect ovarian function and future fertility. Egg freezing may be discussed before treatment when medically appropriate.
Both egg quantity and egg quality generally decline with increasing age. Egg freezing may allow some eggs to be preserved at an earlier age for potential future use.
Some women may have medical or reproductive factors that could affect future ovarian function. A fertility specialist can assess the individual situation and discuss options.
Egg freezing can be one option for women who are not currently ready to pursue pregnancy but want to preserve some reproductive options for the future.
It is important to understand that egg freezing is an option—not a guarantee of future fertility.
Egg freezing may be considered by women who want to preserve their fertility and are medically suitable for ovarian stimulation and egg retrieval.
Age at the time of freezing is particularly important because egg quality tends to decline with age. A fertility consultation can help determine whether egg freezing is likely to provide meaningful benefit in your individual circumstances.
Egg freezing involves several stages, beginning with fertility assessment and ending with long-term storage of the retrieved eggs:
Before treatment begins, your fertility specialist evaluates your medical history and ovarian function. This may include blood tests and an ultrasound assessment of the ovaries to estimate ovarian reserve and understand how you may respond to stimulation.
During a treatment cycle, injectable fertility medicines are used to stimulate the ovaries so that multiple follicles can develop. The aim is to obtain several mature eggs during one retrieval rather than relying on the single egg typically released during a natural cycle.
Your response to stimulation is monitored through ultrasound examinations and, when appropriate, blood tests. Monitoring allows the fertility team to assess follicular growth and determine when the eggs are ready for retrieval.
When the follicles have developed sufficiently, a medication is given to help the eggs complete their final stage of maturation. The timing of this medication is important because egg retrieval needs to be scheduled within a specific window.
Mature eggs are collected from the ovaries using a procedure guided by ultrasound. A thin needle is passed through the vaginal wall to reach the ovarian follicles, and the follicular fluid containing the eggs is collected under appropriate sedation or anaesthesia.
The collected fluid is examined in the laboratory to identify the eggs. Not every retrieved egg will necessarily be mature or suitable for freezing. Mature eggs that meet the laboratory criteria are selected for cryopreservation.
The mature eggs are rapidly frozen using vitrification. The eggs are stored at very low temperatures under controlled laboratory conditions until they are needed.
Frozen eggs can remain in storage for future use, subject to appropriate laboratory storage procedures and applicable regulations. When you decide to use the eggs, the laboratory will thaw them and assess their survival before proceeding with fertilisation.
Freezing eggs is only the first part of fertility preservation. When you decide to use your stored eggs, the eggs must be thawed and fertilised:
The stored eggs are carefully warmed using a controlled laboratory process. Not every egg is guaranteed to survive thawing, although modern vitrification has significantly improved survival rates.
Eggs that survive thawing can be fertilised with sperm. Because the outer layer can harden after freezing, ICSI (Intracytoplasmic Sperm Injection) is commonly used to introduce a single sperm directly into the egg.
After fertilisation, the resulting embryos are monitored in the laboratory as they develop over several days.
When an embryo is considered suitable for transfer, it may be placed into the uterus as part of a planned embryo-transfer cycle.
There is no single number of eggs that guarantees a future pregnancy. The number that may be recommended depends on factors such as age at egg freezing, ovarian reserve, response to stimulation, number of mature eggs retrieved, and future reproductive plans.
A younger age at freezing may improve the reproductive potential of stored eggs, but individual outcomes vary. Your fertility specialist can discuss realistic expectations based on your age and ovarian reserve rather than promising a particular outcome.
At Miraai Fertility in Seawoods, Navi Mumbai, egg freezing is approached as a personalised fertility-preservation plan rather than a standard procedure for every woman.
Dr. Priya Khamatkar evaluates your reproductive history and ovarian reserve and discusses the potential benefits, limitations and practical considerations before treatment.
Ovarian stimulation involves injections causing mild temporary bloating. Retrieval is performed under sedation with minimal discomfort afterwards.
Potential risks include side effects from medicines, OHSS, or retrieval complications. Monitoring reduces these risks significantly.
A typical cycle takes about 2 to 3 weeks from stimulation start to egg retrieval and vitrification storage.
Frozen eggs can remain safely in vitrification storage for years subject to applicable regulatory guidelines.
Freezing eggs does not prevent you from conceiving naturally later; it simply preserves an extra option for the future.
Freezing eggs offers peace of mind and flexibility, supported by compassionate guidance at every step.
MBBS, MS (OBGYN), FRM
Fellowship in Reproductive Medicine
Director, Advanced Fertility Care Center
Dr. Priya Khamatkar is a fertility specialist focused on personalised and evidence-based reproductive care. With expertise in fertility evaluation and assisted reproductive techniques, she helps patients understand fertility-preservation options and make informed decisions about their reproductive future.
Her approach combines medical expertise with compassionate communication, helping patients navigate fertility preservation with realistic expectations and individualised care.
If you are considering egg freezing in Navi Mumbai, a fertility consultation can help you understand your ovarian reserve, reproductive goals and whether fertility preservation may be appropriate for you.
Shop 1 & 2, The Signature, near HP Petrol Pump,
Seawoods West, Sector 44A, Seawoods,
Navi Mumbai, Maharashtra – 400706
MBBS, MS (OBGYN), FRM
Director & Lead Fertility Specialist