New research reveals microplastics found for the first time ever in reproductive fluids.

It is unfortunately not new information that microplastics and nanoplastics have been found in the brain, cardiovascular and respiratory system and in the gastrointestinal, lymphatic and urinary systems. 

A 2024–2025 study found that human brain tissue contained an average of 4.8 milligrams of plastic per gram of tissue. To put that into perspective, this concentration means that by weight, brain tissue samples were roughly 0.5% plastic, or equivalent to a small plastic spoon.

Only a few month ago scientists are now finding microplastics in blood, placenta, follicular and seminal fluid.

14 out of 18 ovarian follicular fluid samples tested returned a positive result for plastics.

Follicular fluid surrounds the developing egg and plays a critical role in ovulation, egg quality, and early reproductive processes. The presence of microplastics in this environment has understandably raised concerns, particularly for those of us trying to conceive.

Emerging research suggests that microplastics can act as a source of chronic inflammation and oxidative stress, both of which are known to negatively affect reproductive health. They may also carry or leach endocrine-disrupting chemicals, such as bisphenols and phthalates, which can interfere with hormonal signalling essential for ovulation and implantation.

While research is still evolving and long-term human outcomes are not yet fully understood, the detection of microplastics in reproductive fluids highlights a potential added burden on fertility — not as a single cause, but as part of a broader environmental load the body must manage.

The good news is that while microplastics are widespread, exposure can be reduced through simple, realistic changes.

• Using glass or stainless-steel containers instead of plastic for food and drinks, especially when heating, is one of the most impactful swaps.
• Choosing loose-leaf tea over plastic tea bags.
• Reducing reliance on single-use plastics.
• Filtering drinking water.
• Look for 100% organic cotton (not cotton blend) and plastic-free (no polypropylene string/cover) sanitary products.
• Ventilating homes to reduce airborne particles.
• Opting for natural fibres in clothing and home textiles may further lower exposure.

Reducing microplastic exposure isn’t about perfection — it’s about awareness and small, cumulative choices. As research continues to develop, these simple swaps offer a practical way to support overall health and reduce unnecessary environmental stressors during a time when the body’s resilience matters most.

While microplastics are part of modern life, awareness gives us power — and even small, intentional choices can meaningfully reduce exposure over time.