What is the most common cause of male infertility?

The most common cause of male infertility is indeed linked to issues with low testosterone levels or problems related to sperm production. This category includes a variety of conditions that can affect the quantity or quality of sperm produced, as well as hormonal imbalances that can impair sperm development and function.

Low testosterone can affect sperm production in a few ways. Testosterone plays a critical role in the development of sperm in the testes, and insufficient levels can lead to poor spermatogenesis (the process of sperm production). Conditions such as hypogonadism, where the male body does not produce enough testosterone, are common contributors to infertility.

Additionally, factors leading to reduced sperm production could include varicocele (enlargement of veins within the scrotum), exposure to environmental toxins, and certain medical conditions such as diabetes or infections. The cumulative effects of these factors place hormonal issues at the forefront of male infertility causes, making them the most prevalent among the options provided.

The other choices generally pertain to less common causes. Prostate issues, while they can impact fertility, are not the leading cause. Genetic disorders can contribute significantly to fertility challenges but occur less frequently compared to hormonal and sperm production issues. Hormonal therapies, while they may influence fertility, are typically a treatment rather