How to Reduce the Risk of Chromosomal Abnormalities in US and Mexico IVF?

2026-04-24 22:42:19，浏览量： 13次

 

Repeated failures, early miscarriages, and embryo arrest are not always coincidental. One frequently mentioned yet often overlooked factor is chromosomal abnormalities. A normal human cell contains 23 pairs of chromosomes. Any deviation during meiosis can lead to abnormalities in number or structure. These issues usually present no obvious symptoms but can directly affect the quality of the fertilized egg. Even if an embryo forms, it may stop developing early or result in an increased risk of miscarriage due to chromosomal problems. This explains why some individuals experience repeated failures despite having “normal” test indicators.

 

In actual fertility planning, chromosomal abnormalities not only affect pregnancy outcomes but are also closely related to egg and sperm quality. In women, egg aging accelerates after the age of 35, while in men, sperm DNA fragmentation rates tend to increase with age and lifestyle factors. The combination of these variables further raises the probability of chromosomal abnormalities.

 

Age is a key variable affecting chromosomal stability. Clinical data show that after the age of 35, the proportion of embryos with chromosomal abnormalities rises significantly, and after 40, it enters a higher-risk range. This not only makes conception more difficult but also reduces the effectiveness of each attempt.

 

IVF-PGT, also known as third-generation IVF, is centered on the principle of “screen first, transfer later.” After embryos are cultured to the blastocyst stage, comprehensive chromosomal screening is performed through genetic testing, and only embryos with normal structure and number are selected for transfer.

 

This process changes the traditional IVF pathway of transferring embryos immediately after formation. By introducing preimplantation screening, it is possible to effectively reduce failure rates caused by chromosomal abnormalities and improve implantation rates and healthy live birth rates per transfer. For individuals with a history of miscarriage, repeated failures, or advanced maternal age, this step often determines the overall efficiency of the treatment cycle.

 

IVF success rates are never determined by a single factor but are the result of combined assessment, planning, and execution. IVF in the US and Mexico places greater emphasis on individualized analysis, using AMH, AFC, hormone levels, and prior fertility history to build a comprehensive evaluation model, followed by tailored ovarian stimulation and transfer strategies.

The IVF USA team, founded by Dr. Nathan Zhang, has been engaged in overseas assisted reproductive consulting services for more than a decade, providing egg freezing in the United States, IVF in the United States, and third-party assisted reproduction services to those in need. With nearly 20 years of experience in the field of overseas assisted reproduction, IVF USA has strategically expanded into the Mexican market early on, becoming the Chinese agency for Power Fertility Center Mexico (POWER IVF). Currently, Dr. Nathan Zhang’s services have expanded beyond the United States to include IVF and egg freezing in Mexico, as well as IVF and egg freezing in Japan and Thailand, along with services in Taiwan and Hong Kong. With years of experience, IVF USA and Dr. Nathan Zhang are able to provide professional guidance and support to each family, helping them move forward with greater clarity and confidence on their fertility journey.