Class Action vs. Mass Tort: What Is the Difference?

Class Action

When a group of people suffers similar harm because of corporate negligence, those individuals may choose to file a mass tort or class action lawsuit to find justice and protect their rights.

Although both cases involve a relatively large group of plaintiffs who have similar claims against the same defendant, they are also different in terms of court procedure and other aspects.

Most of us may be familiar with class action lawsuits such as the Hernia Mesh Class Action and Talcum Powder Class Action, but only a few people understand mass tort.

In this post, we define each lawsuit and illustrate some of the critical differences between the two.

What Is Class Action?

In simple terms, a class action is a type of litigation used when a group of people suffers the same or similar injuries because of using the same product or being subject to the same wrongful action by someone else.

class action lawsuit plays a critical role in reducing the number of individual cases that may be filed when a group of people suffers similar injuries due to corporate negligence.

In a class action suit, the court authorizes a single person or a small group of people to represent the interests of the larger harmed group. This is known as a class representative.

A motion must be filed with the court authorizing the class representative to act as a lead plaintiff on behalf of the other members. Thereafter a single person or  a small group is enlisted as the complainant.

Rule 23 (a) establishes four requirements for representative members of a class to sue or be sued on behalf of all members of the class:

  • Numerosity: The class must be so big such that filing individual lawsuits for each member is practically impossible.
  • Commonality: There must be questions of law or fact common to all members of the class.
  • Typicality: The claims or defenses of the class representative are similar to the claims or defenses of the whole class.
  • Adequacy: The class representative will adequately protect the rights and interests of the entire class.

What Is Mass Tort?

Before we define what a mass tort is, let us define the term “tort” as it is the building block for this type of lawsuit.

A tort is a general term used to refer to a wrongful act or omission by one party that causes harm or physical injury to another party. In most cases, the injuries and harm happen as a result of negligence.

Therefore, a mass tort can be defined as a wrongful action or act of omission that causes harm or injury to a relatively large group of individuals. In such circumstances, the injured individuals may come together in a single mass tort lawsuit and file a complaint against the defendant.

Got a Legal Issue? Let Us Help You Find An Attorney Near You

Each case filed in a mass tort lawsuit usually involves common questions of fact. However, each plaintiff is treated as an individual. Although complainants in a mass tort lawsuit make the same allegations against the defendant, the severity of their claims may vary.

In most cases, mass torts are filed when plaintiffs bring lawsuits for damages against medical device and pharmaceutical companies for bodily injuries or product recalls.  Furthermore, most mass tort lawsuits proceed as multidistrict litigation (MDL) in the federal court system.

What Is the Difference between Class Action and Mass Tort Lawsuits?


Now that you understand what each term means, you may be wondering how the two are different, considering they sound very familiar.

The key difference between class actions and mass torts has to do with how the large groups of plaintiffs are treated in court. With mass torts, each complainant, even though he/she is part of a large group, is treated as an individual.

It means that for each plaintiff in a mass tort lawsuit, specific facts must be established, including individual details of how the actions of the defendant have caused harm or injury to the plaintiff.

Generally, mass torts are broader and may involve different types of injuries that occurred as a result of the action or inaction of the defendant. In contrast, class actions are more specific, and all members of a class must share common issues.

Simply put, mass tort actions involve multiple, individual lawsuits against the same defendant simultaneously. Class actions, on the other hand, are multiple injury victims, or plaintiffs, grouped together in one lawsuit. The main difference is the level of control of the injured party in the case.

PS: It is important to note that while class actions and mass torts are somehow different, the two are not mutually exclusive. While some plaintiffs may choose to pursue individual claims under mass tort, others will want to join a class action for a similar lawsuit. It only depends on the circumstances surrounding each case and what the complainant prefers.

Learn More about Class Actions and Mass Torts


If you or your loved one has suffered injuries due to a defective product, medical device, or any other corporate negligence, then you may benefit from a class action or mass tort lawsuit.

At Legal Giant, we have a team of experienced class action attorneys that will take up your case and fight for your rights. Contact us today to learn more about class action and mass torts or to schedule consultation.

Legal Giant is not a law firm and does not offer legal services.  We are a lawyer network platform that provides you access to hundreds of highly skilled attorneys in your area.  Our primary objective is to help you find a specialist lawyer for your case as fast as possible. We focus on practice area expertise and jurisdiction to offer you the best service possible.  Any information provided on this site is not legal advice, does not constitute a lawyer referral service, and no attorney-client or confidential relationship is or will be formed by the use of our site.

Leave a Comment

Scroll to Top

Legal Giant’s mission is to connect you with highly experienced attorneys when you need legal help, just like it’s our own family.Our team of experienced writers and legal editors is fully committed to providing high-quality content and accurate information.

Our content is fact checked and approved by our team of editors and practicing attorneys. Should you find an error within any of our website content, please feel free to contact us and let us know.

Tell us about your case to get started.

Seraphinite AcceleratorOptimized by Seraphinite Accelerator
Turns on site high speed to be attractive for people and search engines.