Fertility Preservation

What is fertility preservation

Fertility preservation is a modern medical approach that allows eggs, embryos or sperm to be frozen and stored under specialised laboratory conditions for future use.

This process is carried out through cryopreservation, in which reproductive cells are stored at extremely low temperatures in liquid nitrogen, helping preserve their biological characteristics over a prolonged period of time.

Depending on the individual case, the following may be preserved:

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This option allows patients to plan parenthood more flexibly, preserve fertility before medical treatment, or store reproductive material for future treatment attempts.

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Who This May Be Suitable For

Fertility preservation may be appropriate for:

  • Women who wish to postpone motherhood to a later stage
  • Couples undergoing IVF treatment who have embryos available for storage
  • Patients preparing for treatment such as chemotherapy or radiotherapy that may affect fertility
  • Men with impaired semen parameters
  • Patients preparing for surgical procedures that may affect reproductive function
  • Couples who wish to preserve reproductive material for future attempts  

Main Cryopreservation Methods

Egg Freezing

This procedure involves the retrieval and subsequent freezing of eggs using vitrification, a modern method that enables rapid and safe preservation.
1

Embryo Freezing

With this method, embryos created through IVF are frozen and stored for future use.
2

Sperm Freezing

Sperm cryopreservation allows semen samples to be stored for future reproductive procedures.
3

What Patients Can Expect

  • An individualised approach based on the medical situation
  • A detailed consultation and fertility assessment
  • Modern laboratory technologies for safe storage
  • Clear information about future use options  

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Risks and Safety

Cryopreservation is an established and widely used method in reproductive medicine. Modern vitrification techniques support a very high level of cell viability after thawing. Procedures are carried out under strictly controlled laboratory conditions and under the supervision of a specialised team.

Duration and Preparation

The duration and preparation depend on the specific method used:  

  • Egg Freezing — approximately 2 to 3 weeks, including ovarian stimulation and egg retrieval

  • Embryo Freezing — performed as part of an IVF cycle

  • Sperm Freezing — typically completed within a single day

Preparation includes a consultation with a specialist and the required medical tests.

Team and Specialists

These procedures are performed by a multidisciplinary team that may include:  

  • Fertility specialists
  • Obstetricians and gynaecologists
  • Embryologists
  • Nurses
  • Laboratory specialists
  • A psychologist, when needed

Where the Procedure Is Performed

Cryopreservation procedures are performed at New Life reproductive medicine centres in:

New Life Plovdiv

New Life Nia Med

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Frequently Asked Questions

How long can frozen cells be stored?

Reproductive material can be stored long term under specialised laboratory conditions.  

Does freezing affect the quality of eggs or sperm?

Modern vitrification methods make it possible to preserve a high percentage of viability after thawing.

Can frozen embryos be used years later?

Yes. When properly stored, embryos can be used years later.

Is the procedure painful?

The freezing process itself is not painful. In egg freezing, egg retrieval is performed under short intravenous anaesthesia.

Who can benefit from this option?

Any patient or couple who wishes to preserve reproductive material for future use may benefit from this option.  

Is a предварителна consultation required?

Yes. A consultation with a specialist is important in order to choose the most appropriate approach.  

At which clinics is the procedure available?

The procedures are available at New Life Plovdiv and New Life Nia Med Stara Zagora.