By Treven Pyles
Posted on May 06th, 2025
The health crisis involving per- and polyfluoroalkyl substances (PFAS) continues to cause a lot of harm. In addition to damaging kidneys and livers, recent studies have shown that these "forever chemicals" may also lead to thyroid disorders and diseases, especially in firefighters who use aqueous film-forming foam (AFFF).
The widespread use of PFAS, ranging from consumer goods to construction, has been attributed to their versatile and durable properties. They can be found on non-stick pans, clothes, electronic gadgets, and water-repellent wall coatings, but they are most notable for firefighting.
AFFF exposure can cause thyroid disorders
Firefighters across the country relied on AFFF, a fire extinguisher made from PFAS, for putting out Class B fires, which involve flammable or combustible liquids and gases like fuel, gasoline, oil, and kerosene.
Safety concerns surrounding AFFF began to surface when several studies found a connection between PFAS exposure and adverse health issues. These include damage to the immune system, kidneys, and liver. Additionally, scientists discovered that exposure to these toxic chemicals may also cause thyroid disorders.
When they enter the body, PFAS can stay in tissues and even organs like the thyroid for a long time and may cause disorders like:
- Interruption in the normal production and regulation of hormones.
- Cell damage since PFAS can accumulate in thyroid cells and, as a result, disrupt their ability to function properly.
- An altered immune response that potentially contributes to the development of autoimmune thyroid conditions.
Thyroid diseases linked to AFFF/PFAS exposure
Several studies have also found that exposure to AFFF or PFAS can increase the likelihood of developing thyroid diseases. Some of these include:
- Hashimoto's thyroiditis
- Graves' disease
- Other autoimmune thyroid diseases
- Hyperthyroidism or hypothyroidism
- Thyroid cancer
Because of exposure to toxic substances, including the PFAS found in AFFF, research suggests that firefighters have an increased risk of developing thyroid cancer compared to the general population.
Contact us to learn more about how to file your AFFF claim
If you're a firefighter who has been exposed to PFAS in the line of duty and has developed thyroid diseases, including thyroid cancer, you may be eligible for an AFFF claim.
All you have to do is provide us with your military (for military firefighters) or employment records (for civilian firefighters), as well as your medical records stating your diagnosis. If we determine that you qualify, we can assist you in taking the right steps to ensure you receive the proper compensation.
