Fertility Preservation at Yaal Fertility Centre, Chennai

Both options preserve your ability to have a biological child later, but they differ in one crucial respect: an embryo has already been fertilised, and an egg has not.

Egg freezing preserves your eggs on their own, without fertilising them first. This is generally the right choice if you do not yet have a partner or are not ready to decide on a sperm source, since it keeps that decision open for the future — the eggs can later be fertilised with a partner’s sperm or donor sperm, whichever you choose at that time. It is the more common choice for elective, social freezing.

Embryo freezing means the eggs have already been fertilised — with a partner’s sperm or donor sperm — and the resulting embryo is frozen. Embryos generally tolerate freezing and thawing very well, and because fertilisation has already happened, it removes one step of uncertainty from the future process. This is the natural choice for couples in a committed relationship who are certain about their sperm source, or for anyone with surplus embryos remaining after an IVF cycle.

Neither option is objectively better — the right choice depends on your relationship status, certainty about a future sperm source, and personal preference. Dr. Rukkayal can talk through the trade-offs relevant to your specific situation. For the full procedural detail of either path — the stimulation protocol, retrieval, and vitrification process — please see our dedicated egg freezing and embryo freezing pages.

The single most important factor in elective fertility preservation is age, because it determines both how many eggs can be retrieved in a cycle and how well those eggs are likely to fertilise and develop into a healthy pregnancy later. Freezing earlier, when ovarian reserve and egg quality are generally higher, tends to preserve more options than freezing later — which is the central trade-off behind the idea of social freezing.

There is no single “right” age to freeze, and it is not solely a numbers question. It is also a personal one: about where you are in your career, your relationships, your finances, and your own readiness. What can be said plainly is that waiting does not improve the biology, only the personal circumstances — so the decision is really about weighing the value of more time against the value of a larger reserve of higher-quality eggs.

An honest conversation about your current ovarian reserve, based on AMH levels and antral follicle count, is the most useful input into that decision, and it is where Dr. Rukkayal will start.

When fertility preservation is needed for a medical reason — most commonly ahead of chemotherapy or radiotherapy for cancer, or ahead of a surgery affecting the ovaries, uterus, or testes — the situation is usually more time-pressured than elective freezing, and the process is planned in close coordination with your oncologist or treating specialist.

Chemotherapy and radiotherapy can damage eggs, sperm, and the tissues that produce them, sometimes permanently. Where there is time before treatment must begin — typically at least one to two weeks, though this varies by individual case and treatment urgency — egg or embryo freezing (or sperm freezing for male patients) can often be completed before chemotherapy or radiotherapy starts. Where there is no time for a full stimulation cycle, alternative or more urgent approaches may be discussed, and this is a conversation best had jointly with your oncology team.

Preserving fertility should never come at the cost of delaying necessary cancer treatment, and this is a balance we are careful to manage in coordination with your treating doctors, not something decided by the fertility team alone.

It is worth being direct about what fertility preservation actually buys you, since the value is easy to either overstate or underappreciate.

Freezing eggs or embryos while they are younger and of higher quality can meaningfully widen your options later — it does not stop your body from ageing, but it can preserve a cohort of eggs or embryos that will not age along with you. For someone weighing career, relationship, or medical timing against a biological clock they cannot otherwise pause, this is a genuine, practical benefit, not a marketing claim: the eggs or embryos in storage reflect your reproductive potential at the time they were frozen, not at whatever age you eventually use them.

What it does not do is guarantee a future pregnancy. The number and quality of eggs or embryos retrieved in any single cycle varies between individuals, and using them later still involves the normal steps — and normal chances of success — of an IVF or frozen embryo transfer cycle. We are candid about this distinction in every consultation: preservation is about keeping options open and biologically younger, not about eliminating uncertainty from the process altogether.

Gender-affirming hormone therapy and certain gender-affirming surgeries can reduce or eliminate future fertility using one’s own eggs or sperm. For transgender and non-binary individuals who may want a biological child in the future, discussing fertility preservation before starting hormone therapy or surgery is worth raising as part of pre-treatment planning, ideally with both your endocrinologist or surgeon and a fertility specialist involved.

The practical options — egg freezing, embryo freezing, or sperm freezing — are the same as for other patients, and the decision-making largely mirrors the medical-preservation conversation above: timing relative to hormone therapy, and coordination with the clinicians managing that broader care.

We approach this conversation the same way we approach any fertility preservation discussion — with respect for your circumstances and without assuming what you want, and by connecting you to Dr. Rukkayal for an individual assessment.