What the Money Is Actually Buying

The advertising for this is everywhere now — station posters, the inside of trains, the feed between two other things — and it is all in the same register: a woman in her thirties, unhurried, deciding something for herself. It is an attractive register and it is not a lie. It is also selling, and the thing about a register is that it does not contain numbers.

This page is the numbers, with their limits attached, and one question that is worth more than all of them. It does not tell you to do this and it does not tell you not to. Both of those would be somebody else deciding something about your body from outside, which is the thing this library objects to on every other page and does not get to make an exception for here.

One thing to put down before starting, because it sits underneath the whole subject and makes it hard to read straight. Nothing here implies that a woman of thirty-five without a child is behind on anything. There is no schedule. The arithmetic of ovarian reserve is a physical fact and it is not a verdict, a deadline, or a comment on how anybody has spent her twenties.

Mechanically it is the first half of IVF and then a pause. Hormonal stimulation over roughly a fortnight to bring several follicles on at once instead of the usual one, monitoring by ultrasound and blood, then retrieval — a needle through the vaginal wall under sedation, taking perhaps ten to twenty minutes. The eggs that come out are unfertilised, and they are frozen by vitrification, which cools fast enough that ice crystals do not form.

Later, if they are used, they are thawed, fertilised by injecting a single sperm into each one, cultured for a few days, and one embryo is transferred. Each of those steps has a survival rate attached, and they multiply. That multiplication is the reason the number of eggs retrieved matters more than the fact of having frozen any — a point clinics do make, and the honest reason they encourage more than one cycle.

Two costs that are easy to underweight at the decision point. Storage is an annual fee for as long as the eggs are held, which in many cases is a decade or more, and it is a standing subscription rather than a one-off. And the stimulation is a fortnight of injections with real side effects and, rarely, ovarian hyperstimulation, which is a genuine medical event rather than a consent-form formality.

Everything on this page so far has been about one of two things that share a name, and the distinction matters enough that running them together does real harm. 社会的適応 is freezing by choice, with time available and no medical event forcing the question. 医学的適応 is freezing because a treatment that is about to start is expected to damage ovarian function — chemotherapy, radiotherapy, long-course hormone therapy for breast cancer, a transplant conditioning regimen.

Almost every number in this essay changes when the reason changes. Utilisation is low among elective freezers partly because life goes well; it is a different calculation entirely for a woman whose ovarian function is expected to be gone. The unhurried question about what she would do differently next month is the right question for one of these situations and an insult in the other, where the timetable is set by an oncologist and measured in weeks. And the professional caution about elective freezing is not addressed to her at all.

The public money is different too, and this is the part that goes unmentioned at precisely the moment it is needed. Since April 2021 there has been a national scheme supporting fertility preservation for children and AYA-generation cancer patients, run through the prefectures, with freezing at designated institutions under the age of forty-three. A woman told on a Tuesday that treatment starts in three weeks is not in a position to research a funding scheme, and the people around her frequently do not know it exists.

So the instruction for that situation is one sentence and it belongs early rather than at the end. Ask about fertility preservation at the first oncology appointment, before treatment is scheduled, even if you are certain you do not want children — because the window closes when treatment starts and certainty at thirty-one is not binding on the person you will be at forty. A good oncologist raises it unprompted. Not all of them do, and the cost of the omission is not recoverable.

Follow-up studies of women who froze eggs electively find that very few ever come back for them. A cohort at UCLA of women who froze between 2014 and 2016 found 5.7 per cent had returned to use them within five to seven years; other series put overall usage somewhere around eight per cent. The figures vary by clinic, country and how long the follow-up runs, and the honest summary is a range rather than a figure: the great majority of frozen eggs are never thawed.

The reasons are mostly good ones and that is the first thing to notice. Women conceived without help. Women decided not to have children. Women had a child by another route. A frozen egg that is never used because life went well is not a waste; it is an insurance policy on which no claim was made, and nobody calls a fire they did not have a failure of their insurance.

But there is a shape inside the data that is worth seeing, and it is uncomfortable. Return rates are highest among the women who froze latest — around eight per cent among those who froze at thirty-eight to forty-two — and those are precisely the eggs with the lowest chance of producing a live birth. Meanwhile the women who froze early, whose eggs would work best, are the ones who mostly never come back. The group holding the strongest policy rarely claims; the group most likely to claim is holding the weakest one.

This is not an argument against freezing and it should not be read as one. It is the shape of the decision, and it is missing from every advertisement, which is the only reason it is on this page. The limits belong with it: these are observational cohorts from particular clinics in particular countries over particular windows, follow-up is still short for a technology used electively at scale for barely a decade, and none of it predicts what any individual woman will do.

It is not buying a baby, and everybody involved knows that, but the way the decision gets made often proceeds as though it were. What is being bought is an option: the right, not the obligation, to attempt something later on terms fixed today. Options are real and they have real value. They also have a correct way of being priced, and it is not the way this one usually gets priced.

The question that prices it is this one, and it is worth sitting with rather than answering quickly. What would you do differently, starting next month, if you knew the eggs were there? If the honest answer is a concrete difference — I would stop treating the next two years as a deadline, I would not stay in this relationship because of the arithmetic, I would take the posting abroad — then the option has real value to you and the money is buying something specific. If the honest answer is "nothing, I would just feel better", that is worth knowing too, and it is worth knowing before the first injection rather than after the tenth annual storage invoice.

Feeling better is not a trivial purchase and this page will not sneer at it. A woman who has spent three years with a low-grade dread running underneath every decision may reasonably pay to put the dread down, and that is a coherent thing to buy. It is simply a different thing from what the advertisement is selling, it has substitutes that cost less, and knowing which one you are buying is the whole of being able to choose.

Freezing preserves the age of the egg. It does not preserve the age of the woman. Those are two separate biological clocks and only one of them is being stopped, and a surprising number of otherwise well-informed people have merged them.

Egg quality drives the chance of a viable embryo, and that is the clock freezing addresses. The pregnancy itself — hypertensive disorders, gestational diabetes, placental problems, the rate of caesarean, and the plain physical demand of carrying and recovering — runs on the age of the body at the time of the pregnancy, not on the date the egg was collected. A woman conceiving at forty-four with an egg frozen at thirty-two is having a forty-four-year-old pregnancy.

Which is where the Japanese professional guidance becomes legible rather than arbitrary. 日本生殖医学会’s guideline on freezing for social indications states that retrieval is not recommended at forty or over, and that use of frozen eggs is not recommended at forty-five or over. The first number is about how few usable eggs a retrieval is likely to yield. The second is not about eggs at all — it is about the pregnancy. Read that way the guidance is two different cautions wearing one costume, and only the first of them is affected by having frozen early.

Tokyo began subsidising elective egg freezing in October 2023 for residents aged eighteen to thirty-nine at the time of retrieval, at up to three hundred thousand yen for that year’s freezing. The ceiling steps down for each subsequent year of freezing — around two hundred and eighty thousand, then two hundred and sixty, then two hundred and forty — so the amount depends on the year, and the scheme requires attending a briefing. Anybody considering it should check the current year’s terms at the source rather than relying on a figure quoted anywhere, including here.

Meanwhile 日本生殖医学会 does not recommend elective freezing in general, for the reasons in the previous section. So a woman in Tokyo is standing between a public body paying part of the cost and a professional body declining to recommend the thing being paid for. That is genuinely odd, and it is worth understanding rather than resolving.

The two bodies are answering different questions. A professional society asks whether this is good medicine for the average patient, and concludes that an elective procedure with real side effects, modest expected yield and low utilisation does not clear that bar as a recommendation. A metropolitan government asks what would widen the options of women living in a city with a very low birth rate, and concludes that removing a financial barrier from a legal choice is a reasonable use of public money. Both are coherent. Neither is about you, and the decision they leave standing in the middle is yours and only yours to make.

For most women the entire information environment for this decision is a clinic, and this needs saying carefully because it is structural rather than accusatory. Clinicians in this field are overwhelmingly serious people doing careful work. The clinic is nevertheless the seller, its consultation is where the decision is usually made, and there is no disinterested party anywhere in the room. That is not a scandal; it is the ordinary condition of buying a medical service privately, and it is exactly the condition in which prepared questions are worth more than they are anywhere else.

Five, worth writing down and taking in. How many mature eggs would you expect from me specifically, given my age and my AMH, and how many cycles is that likely to take? What is the storage fee per year, and what happens if I stop paying it? What are your own thaw survival and live birth figures, and over how many cases? At what age would you tell me not to use these? And: what would you say to me if I said I was not going to do this?

The last one is the useful one, and it is useful precisely because it has no clinical content. An answer that engages with it — that names circumstances in which not doing this is the better call — tells you something real about who you are talking to. An answer that treats the question as an obstacle to be handled tells you something too.

Here is the part this library is in a position to say and a clinic is not, and it has to be said without a single grain of reproach in it. For a substantial number of the women weighing this, the scarce thing is not eggs. It is a situation: a person, or an arrangement, or a stretch of life with enough room in it. Freezing addresses the gamete with great precision and does not touch the situation at all.

That is not a criticism of anybody and it is emphatically not a suggestion that she should be doing something about the situation instead. Situations are not solved by effort, most of what determines them is outside anybody’s control, and a woman who has not met the right person has not failed at a task. The point is narrower and purely practical: a person deciding how to spend a large sum is entitled to know which of two different problems she is spending it on, because the two have different prices, different timelines and different substitutes.

And sometimes the honest answer is both, which is fine and is not a contradiction. Buying time on the first while the second stays open is a legitimate and rather clear-eyed thing to do. The failure mode is only ever the unexamined one: spending on the problem that has a product attached because it is the problem that has a product attached, and finding four years later that the other one has not moved.

We sell nothing on this page and we have no view on what you should do. We are a paid intimacy service, not a clinic, not a counsellor and not a fertility advisor, and an hour here has no bearing whatsoever on any of it. The people to ask are a reproductive specialist and, ideally, a second one who did not stand to gain from the first answer.

The one thing worth naming is the register. Women arrive here sometimes from a stretch of life in which the body has become a set of measurements — a follicle count, an AMH value, a number of mature eggs — and has stopped being a place anybody lives. That conversion is not anybody’s fault; it is what medicalising a part of yourself does, and it usually reverses on its own once the season ends. Where an unhurried hour with nothing to measure does anything at all, that is the only thing it does, and it is not a treatment and we will not call it one.

So: the decision is yours, the advertising is not neutral, and the two facts most worth carrying into a consultation are that the great majority of frozen eggs are never used, and that freezing stops the egg’s clock and not the body’s.

And the question that is worth more than either of them, because it is the one nobody in the room has an interest in asking you: what would you do differently, starting next month, if you knew they were there? Whatever the answer is, it is yours, it is information, and it is available for the price of sitting still for ten minutes — which is considerably less than everything else on this page costs.