TL;DR; Is male fertility declining?

In short, yes. Recent studies and scientific research indicate that male fertility has been declining over the past few decades. This decline is often measured through sperm count and quality, which are key indicators of male fertility.

OK, So why this is happening?

  1. Environmental Factors: Exposure to certain environmental pollutants and chemicals, such as pesticides, heavy metals, and endocrine-disrupting chemicals, can negatively impact sperm quality and count.

  2. Lifestyle Choices: Factors like smoking, alcohol consumption, drug use, obesity, and stress have been linked to reduced sperm quality and count.

  3. Health Conditions: Certain medical conditions, such as varicocele (enlargement of the veins within the scrotum), infections, hormonal imbalances, and genetic disorders, can also impact male fertility.

  4. Technological and Social Changes: Increased use of electronic devices, tighter clothing, and changes in sexual behavior might also contribute to this trend, though the evidence is more anecdotal and less scientifically proven.

  5. Age: Just as female fertility declines with age, so does male fertility, though the effect is less pronounced and occurs later in life.

FertileFacts Library

Latest Studies

Reasons for worldwide decline in male fertility

Potential causes include, increased rates of obesity, poor diet, and exposure to environmental toxins. How this decline in sperm counts reflects fertility has yet to be determined.

Environmental Toxins and Male Fertility

Toxins may exert estrogenic and/or anti-androgenic effects, which in turn alter the hypothalamic-pituitary-gonadal axis (HPGA), induce sperm DNA damage, or cause sperm epigenetic changes. 

Reasons for worldwide decline in male fertility

Potential causes include, increased rates of obesity, poor diet, and exposure to environmental toxins. How this decline in sperm counts reflects fertility has yet to be determined.

Reasons for worldwide decline in male fertility

Potential causes include, increased rates of obesity, poor diet, and exposure to environmental toxins. How this decline in sperm counts reflects fertility has yet to be determined.