Egg freezing

What is egg freezing?

Egg freezing means collecting some of your eggs, freezing them, and storing them so you can try to have a baby later. The eggs are frozen very quickly (a method called vitrification) and kept in liquid nitrogen until you decide to use them.

People freeze eggs for different reasons: before medical treatment that could harm fertility (such as some cancer treatments), because of a health condition, before gender-affirming treatment, or because they are not ready to try for a baby and want to give their future self a chance using younger eggs.

It is important to be honest about what egg freezing can and cannot do. It does not stop the clock or guarantee a baby. When you come to use the eggs, they are thawed and fertilised with sperm (usually by ICSI), and an embryo is transferred — but not every egg survives thawing, not every egg fertilises, and not every embryo leads to a baby. The younger you are when you freeze, the better the chance, which is why age at freezing matters so much.

Eggs are stored under strict UK rules, with a cost for storage and a need to renew your consent over time. Freezing eggs is a real option, but it is a chance, not an insurance policy.

Types, options & approaches

There may be different ways to do this. The right approach depends on the clinical question and your circumstances.

Freezing eggs vs freezing embryos

Which suits you depends on your circumstances, relationship and values. Counselling helps you decide. This is a general comparison, not advice for your situation.

Preparing for your treatment

• Have a frank conversation about your realistic chance of a baby for your age, and how many eggs may be needed.
• Have ovarian reserve tests (such as AMH and an ultrasound) to estimate how you may respond.
• Understand that you may need more than one collection cycle to store enough eggs.
• Ask about storage length, the cost of storage over time, and renewing your consent.
• Complete consent forms, including what should happen to your eggs in different future situations.
• Take folic acid and follow general health advice; stop smoking and limit alcohol.
• Learn the warning signs of OHSS and arrange someone to take you home after collection.
• If freezing for medical reasons, ask how quickly it can be arranged so it does not delay urgent treatment.

What happens

For about two weeks you give yourself daily hormone injections to encourage several eggs to grow, with ultrasound scans (and sometimes blood tests) to monitor your response. A 'trigger' injection is then given to mature the eggs.

The eggs are collected about 36 hours later. Under sedation or a general anaesthetic, a fine needle is passed through the vaginal wall, guided by ultrasound, to collect the eggs from the ovaries. This takes around 20–30 minutes and you usually go home the same day.

In the laboratory, the mature eggs are frozen quickly by vitrification and stored in liquid nitrogen. There is no embryo at this stage and no transfer — you are storing eggs for the future. If and when you decide to use them, they are thawed, fertilised with sperm (usually by ICSI), and an embryo is transferred in a separate treatment cycle.

Is this treatment right for me?

A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.

Before you decide

Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.

Comfort, sedation or contrast choices

If local anaesthetic, sedation, contrast or pain relief is used, ask what is planned, why, and what it means afterwards.

Two honest points matter most. First, egg freezing does not guarantee a baby, and the chance falls with age at freezing — this should be discussed clearly, not glossed over. Second, the collection involves hormone stimulation with a real, if usually small, risk of OHSS. Ask your clinician for a realistic estimate of your own chance, how many eggs they would aim to store, and whether more than one cycle is likely.

Published figures to discuss

Outcomes vary widely with age at freezing, the number of mature eggs stored, and the clinic's laboratory. Frozen-egg data is still relatively limited and is reported in different ways (per egg, per cycle, per patient). A clinic's own success claims are not regulated in the way HFEA-verified data is. The figures below are cautious and general; ask for results specific to your age and check verified data via the HFEA.

These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.

What happens afterwards

Physical recovery from the egg collection is usually quick — a day or two. But the more important 'afterwards' is long-term: your eggs sit in storage, possibly for years, with no result known until you decide to use them.

• Bloating and a heavy feeling low down for a few days around collection
• Mild period-type cramping and a little spotting after the procedure
• Tiredness for a day or so after sedation or anaesthetic
• Mood changes from the hormones that settle after the cycle
• No physical change while the eggs are simply in storage

Aftercare

• Rest on the day of collection and arrange for someone to take you home after sedation or anaesthetic.
• Drink normally and watch for OHSS symptoms in the days afterwards.
• Take simple pain relief as advised for cramping, and avoid strenuous activity for a day or two.
• Keep your contact details up to date with the clinic so your storage consent can be managed.
• Note when your storage and consent need renewing, and budget for ongoing storage costs.
• Keep folic acid and general health steps going if you may try to conceive soon.
• Know who to contact if you feel unwell after collection.

• Realistic chance for your age discussed and understood
• Ovarian reserve tested before starting
• Possible need for more than one cycle discussed
• Storage length, costs and consent renewal explained
• Lift home after collection arranged
• OHSS warning signs and clinic phone number written down

Scars and how they heal

Egg collection is done with a needle through the vaginal wall, so there is no external cut or scar. You may have some internal soreness, cramping and light spotting for a short time afterwards.

⚠ Get urgent help if…

• Severe or worsening tummy swelling or pain after collection
• Feeling very sick, vomiting or unable to keep fluids down
• Noticeably reduced or dark urine, or rapid weight gain over a day or two
• Shortness of breath or chest tightness
• Heavy vaginal bleeding (more than light spotting)
• A high temperature, chills or feeling generally very unwell (possible infection)
• Sudden severe one-sided tummy pain (possible ovarian torsion)

Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.

General guidance — it doesn't replace the specific advice your specialist gives you.

Results & realistic expectations

There is no immediate result from egg freezing. Success is only known if and when you use the eggs. At that point, the eggs are thawed, fertilised and an embryo is transferred — and a baby is not guaranteed at any of these steps.

The chance of a baby from frozen eggs depends heavily on your age when the eggs were frozen and how many mature eggs were stored. Eggs frozen at a younger age give better odds. Clinics should give you honest, age-specific information, and you can compare verified data through the HFEA rather than relying on marketing figures. Storing eggs is a chance worth considering for some people, but it should never be sold as a guarantee.

Frozen eggs can be stored for many years under UK law, but you must renew your consent over time and keep your contact details current, or the eggs may have to be allowed to perish. Storage does not improve or worsen the eggs — their quality is fixed at the age you froze them. There is an ongoing cost for storage, and it is worth planning for this and for the separate cost of using the eggs later.

Related tests, treatments or support

Egg freezing is the first part of a longer pathway: later thawing, fertilisation (usually ICSI) and embryo transfer are separate treatments. Some people compare or combine egg freezing with embryo freezing. Add-ons may be offered when you later use the eggs; check each against the HFEA's evidence ratings before paying extra.

Follow-up & long-term care

After collection, you should be told how many mature eggs were frozen and given clear information about storage and consent. There is no routine medical follow-up while the eggs are stored, but the clinic should contact you about consent renewal. When you decide to use the eggs, a new assessment and treatment plan is needed.

• Keep your contact details up to date with the clinic.
• Renew your storage consent within the required time so eggs are not lost.
• Budget for ongoing storage fees and for the later cost of using the eggs.
• Re-check HFEA add-on ratings before any future treatment cycle.
• Review your plans periodically, as circumstances and intentions change.

Repeat, follow-on and what comes next

• More than one collection cycle is often needed to store enough eggs.
• Not all stored eggs survive thawing, fertilise or become viable embryos.
• Using the eggs later is a separate treatment with its own chance of success.
• Plans may change over the storage period, and consent must be actively renewed.

Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.

What good aftercare looks like

• A clear record of how many mature eggs were frozen.
• Written information on storage, ongoing costs and consent renewal dates.
• A named contact for any post-collection concerns such as OHSS.
• Honest, age-specific counselling about the realistic chance of a future baby.
• A reminder system so consent is renewed and eggs are not lost.

What affects the cost

Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:

• The number of collection cycles you need to store enough eggs
• The hormone medicines used for stimulation
• Monitoring scans and blood tests during the cycle
• Sedation or general anaesthetic for egg collection
• Ongoing storage fees, charged over years
• The later cost of thawing, fertilising and transferring embryos
• Counselling and any genetic or donor services if relevant

• The cost per collection cycle and the likely number of cycles
• The cost of medicines and monitoring
• Sedation or anaesthetic fees for collection
• Annual or ongoing storage charges and how long they apply
• What it will later cost to thaw, fertilise and transfer
• What happens to fees if few or no eggs are collected
• Cancellation and refund policies

On the NHS? NHS (or HSC in Northern Ireland) funding for egg freezing is mainly for medical reasons, such as before cancer treatment that could harm fertility; freezing for age-related reasons is usually self-funded. Funding rules are not the same across the UK — England, Scotland, Wales and Northern Ireland each set their own eligibility criteria, and these can differ even between local areas and change over time. National clinical guidance (such as NICE) sets out what is clinically recommended, which is not the same as what is actually funded where you live, so always confirm current eligibility with the relevant NHS or HSC fertility service or your clinic.

You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.

Consent traps and marketing red flags

These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.

Choosing a specialist safely

• Check the specialist is on the GMC Specialist Register for this area.
• Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
• You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
• Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
• You're entitled to your total cost in writing — including any follow-up — before you decide.

How Vuemedics verifies every consultant →

Take this to your consultation. A good specialist will welcome every one of these.

• What is my realistic chance of a baby if I freeze eggs at my age?
• How many eggs would you aim to store, and am I likely to need more than one cycle?
• What is my risk of OHSS, and how will you reduce it?
• What are the storage costs and consent rules, and what happens if I don't renew?
• What will it cost, and what is involved, to use the eggs later?
• Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
• Will you be the specialist who carries out my treatment, and who looks after me afterwards?
• What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
• What does a realistic result look like — and what can this treatment not achieve?
• What are my options, including waiting, doing nothing for now, or choosing a different approach?
• Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
• What is the total cost in writing, including any follow-ups, and how much time do I have to decide?

Find a verified specialist for egg freezing

Every consultant is GMC-checked and independently reviewed. Search by postcode and distance, or switch to a map. Ordered by rating, relevance and recency — never by who pays.

How we made this page

Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →

Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.

Sources & standards: HFEA — Egg freezing HFEA — Egg freezing factsheet HFEA — Choose a Fertility Clinic (verified success rates) RCOG — Ovarian hyperstimulation syndrome (patient information) NHS — IVF (egg collection and risks) British Fertility Society — Fertility treatment information NICE NG257 — Fertility problems (clinical guidance, England) NHS inform — Infertility and fertility treatment (Scotland) NHS Wales — Specialist fertility services commissioning policy (CP38) Regional Fertility Centre — Belfast Trust (Northern Ireland/HSC)

Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.

Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.