Mass Tort Cases
Last updated: April 2, 2026
Mass tort cases involve large numbers of people bringing similar claims involving the same product, chemical, contaminant, medication, or exposure. These lawsuits often arise from toxic exposure, consumer product safety concerns, environmental contamination, or other product liability issues.
This page provides general educational information about mass tort cases and does not constitute legal advice.
Many readers start here to get a quick overview of major case categories before moving into more specific pages about pesticides, contaminated water, consumer products, and related health concerns.
If you want to understand how this kind of litigation works, also review Mass Torts, MDL Basics, and Bellwether Trials.
Toxic Exposure and Chemical Cases
Toxic Exposure Lawsuits
Explore broader toxic exposure claims involving dangerous substances, contamination, and long-term health concerns.
Chemical Exposure Lawsuits
Review chemical exposure allegations involving products, workplaces, and other hazardous substance claims.
PFAS Water Contamination Lawsuits
Learn about lawsuits involving PFAS contamination in drinking water and related health concerns.
Pesticide and Herbicide Cases
Pesticide Exposure Lawsuits
Explore broader pesticide-related claims involving herbicides, agricultural chemicals, and long-term exposure allegations.
Paraquat Parkinson’s Lawsuits
Review lawsuits involving allegations that paraquat exposure may be associated with Parkinson’s disease.
Roundup Cancer Lawsuits
Learn about glyphosate-related claims involving non-Hodgkin lymphoma and other cancer allegations.
Consumer Product Cases
Consumer Product Lawsuits
Browse broader claims involving warnings, contamination, product safety, and other consumer product issues.
Hair Relaxer Cancer Lawsuits
Explore product-related claims involving chemical hair straightening products and cancer allegations.
Talcum Powder Ovarian Cancer Lawsuits
Review talc-related litigation involving alleged long-term product use and ovarian cancer claims.
Heavy Metals in Baby Food Lawsuits
Learn about claims involving alleged heavy metals in baby food and related developmental concerns.
Processed Food Addiction Lawsuits
Explore allegations involving ultra-processed foods, overconsumption, and related consumer claims.
PFAS Consumer Products Lawsuits
Explore claims involving PFAS in consumer products, alleged exposure pathways, and related health concerns.
PFAS Cosmetics Lawsuits
Review lawsuits involving alleged PFAS in cosmetics and personal care products.
Technology and Media Cases
Why These Cases Are Often Called Mass Torts
These types of cases are often described as mass torts because many people may allege similar harm tied to the same product, chemical, or exposure source. Even when the cases are coordinated, each person’s injury history, exposure history, and damages may still be evaluated individually.
Some of these coordinated cases also fit within the broader category of personal injury lawsuits, especially when individuals allege physical injury, illness, or other compensable harm.
Learn more in Mass Torts, Class Actions, and How Lawsuits Work.
Explore Related Lawsuit Topics
Browse additional lawsuit categories and learn how coordinated litigation develops over time.
Related Legal Guides
Mass Torts
Learn what mass tort litigation is and how it differs from other types of lawsuits.
MDL Basics
Understand how multidistrict litigation is used to coordinate large groups of federal cases.
Bellwether Trials
See how early test trials can influence settlement discussions and larger coordinated proceedings.
Class Actions
Review how class actions differ from mass tort litigation and when each structure may be used.
