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Freezing & preserving

Fertility preservation for medical reasons

Also called: Before cancer treatment, surgery or gender-affirming care

Freezing eggs, sperm, embryos or ovarian tissue before treatment that could affect fertility – such as chemotherapy, radiotherapy or some surgery.

How long

Can start within days

Typical private cost

Often NHS-funded

NHS

Usually funded for medical reasons

Where to get it93 UK clinicsFind

Who it's for

  • People about to start cancer treatment
  • People with conditions likely to cause early menopause
  • Trans and non-binary people before hormones or surgery
  • Members of the armed forces before deployment

Key facts

  • NICE says referral should be expedited – speed matters before treatment starts.
  • Usually NHS-funded for medical reasons, depending on where you live.
  • Options include egg, sperm, embryo and ovarian tissue freezing.
  • Storage-only centres (often in hospitals) freeze sperm for people with cancer.

What happens

  1. 1

    Urgent referral

    Ask your oncologist or GP for urgent referral to a fertility unit.

  2. 2

    Fast-track cycle

    Egg or embryo freezing can often be started at any point in your cycle ('random start') to save time.

  3. 3

    Freezing and storage

    Material is frozen and stored, with consent renewed every 10 years (up to 55 years).

How long it takes: Egg freezing takes around 2 weeks; sperm freezing can be done in a day.

Success rates

  • Depends on age and what's frozen. Your clinic should give you personalised information.

Each clinic's published rates – compared with the UK average – are on its profile in the clinic finder.

Costs

Often NHS-funded. Privately, see egg and sperm freezing prices.

Examples from published UK price lists (November 2026)
WhatPriceClinic
Sperm freezing incl. 1 year storage£400–£730ARGC, Herts & Essex, TFP
Full UK price guide

NHS funding

  • Fertility preservation for medical reasons is commonly NHS-funded, but criteria (e.g. age, children) vary by area.
NHS funding by nation

Risks and side effects

  • Stimulation may need adjusting for hormone-sensitive cancers – your team will advise.