Sperm freezing


IVF treatment requires prepared sperm for the fertilization process. Once sperm has been collected or retrieved, it is possible to store the washed sperm for use in later treatment cycles. If male infertility is a factor in couples seeking IVF treatments, donated sperm from sperm banks can be used. Sperm banks and fertility clinics use the same methods of cryopreservation to store sperm.

How is sperm frozen?

Collected sperm is analyzed and healthy sperm with good motility are selected. Collected sperm is stored in amounts that allow one sample to be thawed for use in one treatment cycle.

The sperm is combined with a cryoprotectant fluid and gradually frozen in liquid nitrogen vapor. Water is removed from the sperm to ensure the quality of the sperm is not affected by the cryopreservation process. Frozen sperm is stored in liquid nitrogen containers at a temperature of -196 and can be stored for a number of years.

How is sperm thawed?

Sperm is thawed at room temperature by diluting it with water until nothing remains of the cryoprotective fluid. The sperm quality will be the same as before freezing. Thawed sperm is then used in IVF treatment using the same fertilization procedure as unfrozen sperm. ICSI is commonly used to increase the chance of fertilization.

Coping with infertility:Fertility doctors understand that infertility treatment can be stressful for couples, particularly if they are traveling for treatment. To help cope with the process, it is important that any questions about treatment are addressed to the doctors. Understanding how in vitro fertilization works, the procedure involved, the success rates of treatment and the factors that increase the chance of successful fertilization can reduce the stress of IVF. Keep in mind that if you are traveling, your body will be under more stress. Make sure you drink lots of water and try to obtain ample Vitamin D from the sun and fresh air to conquer jet-lag.