What is the key relationship between age and fertility in IVF in the US and Mexico?

2025-09-05 22:21:09，visits： 7

 

On the journey to conception, age is always an unavoidable topic. Many worry that fertility declines over time, and this concern is not unfounded. Studies show that for both men and women, age impacts natural conception as well as IVF success rates. However, the extent and manner of this impact differ.

 

For men, fertility is less affected by age but not immune to it. From age 20 onward, semen volume and sperm motility gradually decline. After 45, the chances of their partner becoming pregnant are significantly reduced, the waiting time for conception is several times longer than in younger men, and miscarriage risk increases. In IVF cycles, failure rates among men over 45 are multiple times higher than in younger men.

 

For women, the challenges of age and fertility are far more pronounced. Before 30, egg quantity and quality remain relatively stable. But with age, ovarian reserve declines sharply—by age 30, less than 2.5% of eggs remain, and some may already carry chromosomal abnormalities. After 35, the chances of conceiving decrease annually, and by 40, the natural conception rate falls to around 5%. Risks of pregnancy complications such as gestational diabetes and hypertension also rise, while IVF success rates among women over 40 drop significantly.

 

Although age imposes limitations, it does not mean fertility opportunities are lost. Many women can still conceive successfully before menopause through scientific preparation and appropriate treatment. At this point, IVF in the US and Mexico, as well as egg freezing in the US and Mexico, have become popular choices. Freezing eggs while young helps preserve healthy eggs, extending fertility potential into the future. Once thawed, eggs combined with IVF-PGT technology allow for genetic and chromosomal screening, greatly improving embryo quality and implantation rates while lowering miscarriage risks.

 

Doctors often recommend IVF in cases such as repeated failure of fallopian tube treatments, ovulation disorders, endometriosis, male infertility including low sperm count, weak motility or abnormal morphology, genetic conditions, or immune-related infertility. Thanks to advanced technology and standardized protocols, IVF in the US and Mexico has become an ideal solution for many pursuing fertility overseas.

 

It is important to remember that fertility is not only a medical issue but also part of life planning and personal choice. For women focused on their careers, egg freezing in the US and Mexico provides peace of mind, ensuring that the future choice of motherhood does not conflict with present goals. For families actively preparing for a child, IVF-PGT offers scientific methods to improve success rates and accelerate the journey to parenthood.

In this process, having the right medical team is essential. IVF USA, founded by Dr. Nathan Zhang, has been providing overseas fertility consulting services for more than a decade, offering egg freezing in the US, IVF in the US, and third-party reproductive options. With nearly 20 years of expertise in global reproductive medicine, IVF USA has expanded early into the Mexican market and is the official representative of Power Fertility Center Mexico (POWER IVF) in China. Today, Dr. Nathan Zhang’s services extend beyond the US to IVF and egg freezing programs in Mexico, Japan, Thailand, as well as Taiwan and Hong Kong. While the timing of parenthood may vary, scientific preparation ensures greater confidence and choice for the future.