Specialized Clinic Danamehr Infertility Treatment

Egg freezing, medically known as oocyte cryopreservation, is a method of fertility preservation that allows women to store their eggs (oocytes) at a younger and healthier stage of life for use in the future.
This technique is especially valuable for women who wish to delay pregnancy due to personal, medical, or professional reasons, or for those who may face treatments (such as chemotherapy or surgery) that could damage their fertility.

How Egg Freezing Works:

• Ovarian Stimulation: The woman receives hormone injections for about 10–12 days to stimulate the ovaries to produce multiple mature eggs instead of just one.

• Egg Retrieval: When the eggs are ready, they are collected from the ovaries through a minor outpatient procedure under light anesthesia.

• Freezing (Cryopreservation): The retrieved eggs are frozen using a rapid freezing technique called vitrification, which prevents ice crystal formation and preserves the egg’s quality.

• Storage: The frozen eggs are safely stored in liquid nitrogen at –196°C, where they can remain viable for many years.

• Future Use: When the woman decides to become pregnant, the eggs are thawed, fertilized with sperm through IVF (In Vitro Fertilization), and the resulting embryos are transferred into the uterus.

Who Can Benefit from Egg Freezing?

• Women who want to delay motherhood for personal or career reasons

• Cancer patients before undergoing chemotherapy or radiotherapy

• Women with family history of early menopause

• Patients with endometriosis or other conditions that may affect ovarian reserve

• Individuals undergoing gender transition who want to preserve fertility

Advantages of Egg Freezing:

• Maintains the possibility of biological motherhood in the future

• Provides emotional and psychological reassurance

• Prevents age-related decline in egg quality

• Enables family planning flexibility

Egg freezing is a safe, proven, and empowering fertility preservation method that gives women greater control over their reproductive future. With advances in vitrification technology, the survival and pregnancy rates from frozen eggs are now comparable to those of fresh eggs.

Sperm freezing, or semen cryopreservation, is a medical procedure used to collect, freeze, and store sperm for future use. This method allows men to preserve their fertility in advance, especially if there is a risk that their ability to produce healthy sperm might decline over time or be affected by medical treatments.

It is a simple, safe, and highly effective technique widely used in fertility preservation and assisted reproductive treatments such as IUI and IVF.

How Sperm Freezing Works:

• Sperm Collection: A semen sample is usually collected through masturbation in a private room at the fertility center. In some cases, sperm may be obtained through minor surgical procedures (e.g., TESA or TESE) if ejaculation is not possible.

• Semen Analysis: The sample is examined in the lab to evaluate sperm count, motility, and morphology (shape and movement).

• Processing and Freezing: The healthiest sperm are separated and mixed with a special protective solution (cryoprotectant) to prevent damage during freezing. The sample is then rapidly frozen using liquid nitrogen at –196°C.

• Storage: Frozen sperm samples are stored in specialized tanks and can remain viable for many years without losing fertilizing ability.

• Future Use: When needed, the sample is thawed and used for IUI (Intrauterine Insemination) or IVF (In Vitro Fertilization) procedures.

Who Can Benefit from Sperm Freezing?

• Cancer patients before chemotherapy, radiotherapy, or surgery

• Men planning vasectomy but wanting the option of future fertility

• Those with declining sperm quality due to age or medical conditions

• Men with high-risk occupations (e.g., military, hazardous environments)

• Individuals undergoing gender transition treatments

• Couples undergoing assisted reproduction who wish to store extra sperm samples

Advantages of Sperm Freezing:

• Simple, fast, and non-invasive procedure

• Long-term fertility preservation

• Maintains the possibility of biological fatherhood

• Ensures sperm availability even during medical treatment or absence

• High post-thaw survival and fertilization rates

Sperm freezing is a safe and reliable method for protecting male fertility. With advances in cryopreservation technology, frozen sperm can remain effective for decades, offering men the opportunity to plan fatherhood whenever the time is right.

Embryo freezing, medically known as embryo cryopreservation, is a procedure used to preserve embryos for future use. It is one of the most important techniques in assisted reproductive technology (ART) and is commonly performed as part of an IVF (In Vitro Fertilization) cycle.
In this process, embryos created by fertilizing an egg with sperm in the laboratory are frozen and stored for later transfer into the uterus. This allows couples to plan future pregnancies without repeating a full IVF cycle.

How Embryo Freezing Works:

• IVF and Fertilization: Eggs are retrieved from the woman and fertilized with sperm in the lab to form embryos.

• Embryo Culture: The embryos are cultured for several days (usually 3 to 5 days) until they reach the cleavage or blastocyst stage.

• Selection: The most suitable and healthy embryos are chosen for freezing.

• Freezing (Vitrification): Embryos are frozen using a rapid-cooling technique called vitrification, which prevents ice crystal formation and protects the cells.

• Storage: The frozen embryos are stored in liquid nitrogen at –196°C and can remain viable for many years.

• Thawing and Transfer: When the couple is ready for pregnancy, the embryos are thawed and transferred into the woman’s uterus during a prepared menstrual cycle.

Who Can Benefit from Embryo Freezing?

• Couples undergoing IVF who wish to save extra embryos for future pregnancies

• Cancer patients before chemotherapy or radiotherapy

• Women who want to delay pregnancy for personal or medical reasons

• Couples at risk of genetic disorders, after PGT/PGD testing

• In cases where embryo transfer must be postponed due to health or hormonal reasons

Advantages of Embryo Freezing:

• Eliminates the need for repeated ovarian stimulation and egg retrieval

• Allows flexible timing for embryo transfer

• Increases the overall success rate of IVF

• Reduces medical and financial costs in future cycles

• Ensures the possibility of having more than one child from a single IVF cycle

Embryo freezing is a safe, effective, and well-established fertility preservation method that provides couples with greater flexibility and peace of mind. Thanks to modern vitrification technology, the survival and pregnancy rates of frozen embryos are now nearly identical to those of fresh embryos.