Cross SectionalHumann = 4852026

Occupational Heat Exposure and Fertility Stress as Independent Factors of Low Semen Quality: A Multidimensional Analysis.

Journal: American journal of men's healthPublished: 2026DOI: 10.1177/15579883261454721

Plain-language summary

This study looked at how occupational heat exposure and fertility-related stress might affect semen quality. It compared 485 men, split into groups with normal and low semen quality based on WHO standards, and measured their social support, fertility-related quality of life, and stress levels. The study found that men exposed to heat at work had over four times higher odds of low semen quality, while higher education was protective. Fertility stress also showed a trend toward worse semen quality, though the link was weaker.

Key findings

  • Occupational heat exposure was the strongest risk factor for low semen quality (4.2x higher odds).
  • Higher fertility-related stress showed a trend toward worse semen quality, but the link was not as strong.
  • Higher education level was linked to better semen quality.

How to analyze the study yourself

Study type
Cross-sectional studies can spot links but cannot prove cause and effect, as they measure everything at one time.
Population
Men from a single hospital, which may not represent all populations.
Funding
Not reported
Watch for
This study found that men exposed to heat at work had much lower semen quality, and fertility stress may also play a role. If you are trying to conceive, it may be worth keeping your testicles cool and managing stress.