Mounting evidence shows that environmental exposures — to chemicals, pollution and certain workplace hazards — can affect fertility for both partners. Understanding which exposures matter and which you can realistically reduce empowers you to protect your reproductive health.
Why Environmental Factors Matter
The reproductive system is sensitive to chemicals that mimic or interfere with hormones — known as endocrine-disrupting chemicals (EDCs). Sperm counts in industrialised countries have dropped by around 50% over the past 50 years, and environmental factors are believed to play a significant role. EDCs are present in many everyday products, but exposure can be reduced with practical changes. The aim is not perfection — it is impossible to avoid all exposures — but reasonable risk reduction, particularly during the months leading up to conception when eggs and sperm are developing.
Main Environmental Exposures Linked to Fertility
BPA (bisphenol A): Found in some plastics and food can linings. Linked to reduced egg quality, lower sperm count and IVF failure
Phthalates: In soft plastics, fragrances, cosmetics and food packaging. Associated with hormonal disruption and reduced fertility
Pesticides: Particularly organophosphates. Occupational exposure clearly affects sperm; dietary exposure has smaller effects
Heavy metals: Lead, mercury and cadmium accumulate in the body and affect both eggs and sperm
Air pollution: Higher PM2.5 levels associated with reduced fertility and increased miscarriage
PFAS ("forever chemicals"): Found in non-stick cookware, water-resistant fabrics and food packaging. Linked to hormonal effects
Heat: Saunas, hot tubs, prolonged laptop use on lap, tight underwear — all reduce sperm production
Practical Steps to Reduce Exposure
Use glass or stainless steel containers for food and water, especially when heating
Avoid microwaving food in plastic — even "BPA-free" plastics may leach other chemicals
Choose fragrance-free or naturally fragranced personal care products and cleaners
Wash fruits and vegetables thoroughly. Choose organic for the "Dirty Dozen" if budget allows
Avoid receipt paper handling where possible (often coated with BPA)
Use low-VOC paints and avoid renovation work during preconception/pregnancy
Filter your tap water if your area has elevated contaminants
For men: Keep laptops off your lap, avoid prolonged saunas and tight underwear
Manage workplace exposures: Speak to your occupational health team if you work with chemicals or radiation
Putting It Into Context
Environmental exposures matter, but it is easy to feel overwhelmed by the long list. Focus on a few high-impact, achievable changes rather than trying to eliminate every chemical from your life — that creates stress without proportionate benefit. The biggest known fertility-affecting exposures (smoking, heavy alcohol, certain medications) are within your direct control. For other exposures, do what is reasonable and sustainable for your lifestyle and budget. Speak to your doctor if you have specific occupational exposures that concern you, or if you have a history that suggests environmental factors may be relevant to your fertility.
Educational information, not medical advice. For advice about your own situation, talk to your doctor.