Unveiling the Truth About U.S. IVF Technology: How Long Can Frozen Eggs, Sperm, and Embryos Be Stored?

2024-09-20 22:01:40，浏览量： 14次

 

During the IVF process, many individuals have questions about the preservation time of frozen eggs, sperm, and embryos. While the internet provides a wealth of information, it can often be confusing. To shed light on this topic, Dr. Nathan Zhang, founder of IVF USA and an authority in reproductive medicine, provides a clear explanation.

 

Regarding the storage time for sperm, eggs, and embryos, Dr. Nathan Zhang points out that sperm can be frozen for a relatively long period, with preservation records exceeding 20 years not being uncommon. Embryos, on the other hand, can be reliably stored for 10 to 15 years. As for frozen eggs, since this technology is relatively new, although the preservation time is gradually extending, most data suggest that frozen eggs can typically be stored for 5 to 8 years.

 

Dr. Nathan Zhang emphasizes that, if conditions allow, freezing embryos is a comparatively better option. Eggs are relatively fragile during the thawing process and more prone to damage. While the technology for freezing eggs is advancing, and their preservation time is gradually increasing, in terms of stability, frozen embryos prove to be more reliable and long-lasting. Typically, frozen embryos can be stored for around 15 years, offering families planning to delay childbirth a greater sense of security.

 

Dr. Nathan Zhang shares the story of a cancer patient who froze his sperm before undergoing chemotherapy. After 21 years of storage, he successfully fathered a healthy child through IVF. This not only demonstrates the feasibility of long-term sperm preservation but also provides valuable insight for patients with similar health concerns.

 

For women over the age of 38, Dr. Nathan Zhang offers professional advice. Studies show that the rate of chromosomal abnormalities in the eggs of women over 38 increases significantly, making freezing embryos a potentially more reliable choice. By freezing embryos and combining advanced PGS/NGS technology to screen them, the success rate of IVF can be significantly improved.

 

Modern freezing techniques are also constantly improving. Currently, vitrification is the mainstream method, which has a higher success rate compared to the traditional slow-freezing method. With this technology, eggs and embryos are rapidly frozen in an ultra-low temperature environment, minimizing the damage caused by ice crystals to the cells. This advancement greatly increases the possibility of preserving embryos for several years, even maintaining relative stability in quality after 10 or more years of freezing.

Around the world, IVF and assisted reproductive technologies are advancing rapidly. However, for prospective parents, choosing a professional and trustworthy medical institution is crucial. IVF USA, with its rich experience and expertise, provides comprehensive services for patients. Currently, IVF USA offers services such as egg freezing and IVF in the U.S., with operations expanding beyond the U.S. to include Japan, Thailand, Mexico, Taiwan, and Hong Kong. IVF USA works closely with IVF doctors worldwide. If you have any questions regarding freezing eggs, sperm, or embryos, feel free to contact IVF USA and Dr. Nathan Zhang. They will help you find the right solutions and guide you through this important fertility journey.