The male infertility crisis is an observed increase in male infertility in recent decades. The earliest indications of this decrease first emerged in the 1970s. From this period, there has been a steady decline of 1.4% in sperm counts with an overall decline of 52.4% over approximately 40 years.

What are reasons for the decline in male sperm counts?

Summary: There exist substantial data to suggest a decline in sperm counts over time. Although causative factors have yet to be fully elucidated, potential causes include, increased rates of obesity, poor diet, and exposure to environmental toxins.

Is there a decline in sperm count?

In 1992, a study found a global 50% decline in sperm counts in men over the previous 60 years. Multiple studies over subsequent years confirmed that initial finding, including a 2017 paper showing a 50% to 60% decline in sperm concentration between 1973 and 2011 in men from around the world.