Overcome Infertility -- Cryopreservation for Future Imseminations

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Fertility is a natural process to insure the survival of human species. Through natural selection, we produce many offspring when the reproductive system works at it's peak in the suitable environment with plenty of food around. On the other hand, the reproductive system may completely shut down or work at it's minimum state in reproduction of offspring, when the environment is hostile including less foods around, war, epidemic, but regardless of all these factors, most women are capable of conceiving during their menstrual stages before menopause.


In fertility, cryopreservation is technique or process where sperm, embryo or unfertilized eggs are frozen and preserved in a liquid nitrogen at very low temperature between 77 K or −196 °C

2. What is cryopreservation?
a) Freezing sperm
After sperm are withdrawn from the testicle,it is stored in the tube and stored in -80ºC for at least 24 hours. Once completely frozen, the tubes containing sperm is transferred into a regular tube rack for long term storage.

b)Freezing embryo
It is possible to freeze and store embryos in liquid nitrogen at very low temperature. Frozen embryos are stored in embryos bank and only available for legally married couple. The cost of storing embryos are low compare to other treatments and 50% of embryos survive thawing and can be transferred into a woman uterus whenever are needed.

c) Freezing eggs
The technique of egg freezing is still in experience stage because freezing and thawing the eggs may damage the outer layer of the eggs and no body know how long they can be stored for a viable pregnancy.

3. Risks
Some of frozen sperm, embryo and unfertilized eggs may be damaged and can not be used when needed


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