Male Obesity Affects Fertility? US and Mexico IVF Success Rates Also Impacted!

2025-08-01 14:27:05，visits： 4

 

During pregnancy preparation, many often believe that pregnancy is primarily the woman's responsibility. However, the truth is that conceiving a healthy baby requires the joint effort of both partners. Mr. Wang's case vividly illustrates this point. Mr. Wang, 31 years old, stands 170 cm tall but weighs over 240 pounds. After six years of marriage, he and his wife had been unable to have children. A detailed examination revealed that the problem lay with Mr. Wang, specifically exhibiting issues such as a small penis and poor sperm quality, all closely related to his severe obesity.

 

Obesity has numerous adverse effects on the human body, some of which directly impact fertility. Firstly, obesity can strain the heart and impair the normal function of the cardiovascular system. Obese individuals often experience compromised blood circulation and metabolism, leading to blood stasis and poor vascular flow, which can cause issues with vascular elasticity and stiffness, increasing the heart's burden and subsequently affecting its normal function.

 

A growing body of research indicates that male obesity not only directly affects a man's fertility but also has long-term detrimental effects on offspring. Obesity can influence the genetic information within male sperm, passing on unfavorable dietary information to offspring, thereby making obesity somewhat hereditary. Even more concerning, male obesity during pregnancy preparation can increase the risk of cancer in their children.

 

Specifically, at the fertility level, obese men often have insufficient androgen levels, which can lead to a small penis, affecting sexual activity and directly impacting conception rates. Furthermore, excessive fat accumulation around the scrotum can compress the spermatic cord blood vessels, causing testicular ischemia and thus impairing normal sperm production. Leptin secreted by adipose tissue can also negatively affect spermatogenesis. Moreover, the high-temperature environment in the scrotal area due to fat accumulation is extremely detrimental to sperm production, leading to reduced sperm count and an increase in dead sperm.

 

 

Mr. Wang's infertility due to obesity caused him significant distress, leading him to consider IVF technology to realize his dream of parenthood. However, multiple studies have found that male obesity indeed negatively impacts IVF success rates. For example, a study published in Scientific Reports, a journal under Nature, showed that male overweight or obesity affects the efficacy of IVF treatment. The study found that a high male Body Mass Index (BMI) can lead to shortened sperm telomere length, reduced mitochondrial activity, and increased sperm DNA fragmentation, ultimately affecting embryo quality and pregnancy rates.

If you have any questions or needs regarding egg freezing or IVF technology, IVF USA welcomes your contact at any time.

Dr. Nathan Zhang established the IVF USA team, which has been providing overseas assisted reproductive consulting services for over a decade, offering US egg freezing, US IVF, and third-party assisted reproductive services to those in need. With nearly 20 years of deep expertise in the field of overseas assisted reproduction, IVF USA, driven by diverse and personalized reproductive needs, strategically expanded into the Mexican market early on, becoming the authorized agent for Power Fertility Center Mexico (POWER IVF) in China. Dr. Nathan Zhang's services currently extend beyond the US to include IVF and egg freezing in Mexico, Japan, and Thailand, as well as Taiwan and Hong Kong. We look forward to partnering with you to help you achieve your dream of parenthood and begin a new, joyful chapter for your family.