Cross SectionalHumann = 452025
The Presence of Microplastics in Human Semen and Their Associations with Semen Quality.
Plain-language summary
This study set out to see if microplastics (tiny plastic particles) are present in human semen and whether they might affect sperm health. Researchers analyzed semen samples from 45 men visiting a fertility center, using a laser-based method to detect and measure microplastics. They found microplastics in most samples, with polyethylene being the most common type. While the study did not find a clear link between microplastics and sperm count, higher exposure to polyethylene was tied to poorer sperm movement.
Key findings
- Microplastics were found in 34 out of 45 semen samples.
- Polyethylene was the most common type of microplastic detected (35.9%).
- Higher exposure to polyethylene microplastics was linked to lower sperm progressive motility (20.6% vs. 34.9%).
- No significant link was found between microplastics and sperm concentration or total sperm count.
How to analyze the study yourself
- Study type
- Cross-sectional studies measure exposure and outcome at the same time, so they can spot links but cannot prove cause and effect.
- Population
- Men visiting a fertility center, which may not represent the general male population.
- Funding
- Not reported
- Takeaway
- This study found microplastics in most semen samples, with polyethylene linked to poorer sperm movement. While the evidence is preliminary, it may be worth reducing plastic use, especially in food and drink containers, if you are concerned about fertility.