Is My Case a Personal Injury Claim or a Mass Tort Lawsuit?

Somewhere between a straightforward car accident claim and a class action lawsuit sits a category of case most people have heard of but few understand clearly: the mass tort. 

Knowing which category a case falls into changes almost everything about how it should be handled, and by whom.

What distinguishes a mass tort from an individual injury claim?

An individual injury claim, a car accident or a slip and fall, involves one plaintiff, one set of facts, and typically resolves entirely on its own. A mass tort involves many plaintiffs harmed by the same product or conduct, a defective medical device, a pharmaceutical with undisclosed side effects, or a contaminated product, whose individual cases are often consolidated for pretrial purposes even though each plaintiff’s damages are evaluated separately. That consolidation process, called multidistrict litigation or MDL, is now a defining feature of the American civil court system: MDL proceedings account for a substantial and growing share of the federal civil docket, with some analyses putting mass tort claims at roughly half of all pending federal civil cases in recent years.

The scale involved is larger than most people realize

As of early 2025, Judicial Panel on Multidistrict Litigation statistics showed more than 275,000 active mass tort MDL cases across the federal court system, with a single MDL involving 3M earplugs alone accounting for over 99,000 of those cases. The Bard hernia mesh litigation involved more than 24,000 pending plaintiffs as of January 2025. These aren’t small, isolated disputes, they’re some of the largest coordinated litigation efforts in the country’s legal history, and the settlement scale reflects that: mass tort and class action settlements combined have totaled an estimated $40 billion or more annually from 2022 through 2024, according to legal industry analysis.

Why does it matter which category your case falls into?

Because the legal strategy, and the type of firm best suited to handle it, differs substantially. An individual injury case benefits from a firm with deep local court experience and strong negotiating relationships with local insurers. A mass tort case, by contrast, benefits from a firm experienced specifically in MDL procedure, coordinating with lead counsel structures, navigating bellwether trial processes, and understanding how a specific product liability litigation is currently structured and progressing nationally.

What mass tort experience looks like

Mass tort cases differ from ordinary personal injury claims because they can involve many people alleging injuries connected to the same drug, medical device, consumer product, or harmful exposure. Although claims may share evidence involving the same defendant or product, each injured person can still have a different medical history, level of exposure, injury, and resulting damages.

That makes relevant case history worth examining when choosing an attorney. A general personal injury practice may handle car accidents, premises liability, and other individual claims, while mass tort litigation can involve a different set of medical, scientific, and procedural issues. Shapiro Legal Group’s Florida personal injury attorneys provide a relevant example of a practice with a documented history of handling injury claims. Looking at the actual cases and practice areas a firm documents can therefore provide more useful information than relying on a broad “personal injury lawyer” label alone.

How would someone know if their situation is a mass tort rather than an individual claim?

The clearest signal is whether the harm stems from a specific product or drug that has already generated significant litigation, information that’s often publicly available through news coverage or attorney advertising once an MDL has been formally established. If a specific medication, medical device, or consumer product has already drawn attention from multiple law firms or news coverage referencing a “lawsuit” or “litigation” tied to that product broadly, that’s often a signal an MDL already exists or is forming.

Does joining a mass tort mean giving up individual case value?

No. Despite being consolidated for pretrial procedural purposes, each plaintiff’s damages in a mass tort are still evaluated individually, based on their specific injury severity, medical history, and documented harm. Consolidation streamlines the shared factual and scientific questions, such as whether a product was defective, without merging individual compensation into a single collective payout, the way a class action settlement fund sometimes does.

What’s the risk of choosing the wrong type of representation?

A general personal injury firm without mass tort experience may not have the infrastructure to participate effectively in an MDL’s coordinated proceedings, from bellwether trial selection processes to common benefit fund arrangements that fund the shared litigation costs across all plaintiffs. Conversely, a mass tort specialist may not be the right fit for a standalone, single-plaintiff accident case with no broader litigation context.

How does the common benefit fund system work, and why does it matter?

In most large MDLs, a portion of every plaintiff’s eventual settlement is allocated to a shared fund that compensates the lead attorneys who handle the litigation’s common questions, the scientific and factual issues affecting every plaintiff, on behalf of the entire group, since individual plaintiff attorneys aren’t duplicating that work case by case. A firm experienced in mass tort litigation understands how this fee structure interacts with an individual client’s own attorney fee, and can explain clearly how much of an eventual settlement goes toward common benefit costs versus the individual attorney’s own contingency fee, a distinction that doesn’t exist at all in standalone injury cases and that an attorney unfamiliar with MDL procedure may not be equipped to explain accurately.

Why does case timing matter so much in mass tort litigation specifically?

Unlike an individual injury claim, where a client generally controls their own timeline within the relevant statute of limitations, mass tort litigation often moves according to a court-managed schedule shared across thousands of plaintiffs, including bellwether trial selection, where a small number of representative cases are tried first to help establish settlement values for the broader group. A plaintiff’s own case might not be resolved until years into a multidistrict litigation’s overall lifecycle, following a rhythm largely outside any individual attorney’s control, which is a materially different experience than the typical 11 to 30 month timeline for individual injury claims discussed elsewhere in personal injury reporting.

Does firm size matter differently in mass tort litigation than in individual cases?

Yes, somewhat inversely to how it often works in individual injury representation. Because MDL cases are coordinated at the national level through lead counsel structures, a firm’s ability to actively participate in shaping that litigation, serving on a plaintiffs’ steering committee, for instance, often correlates with substantial resources and a track record specifically within mass tort practice, rather than with overall firm headcount. A firm’s national reach and specific MDL experience matter more here than its size in the traditional sense.

What should someone specifically ask a firm handling a potential mass tort claim?

Whether the firm is currently involved directly in the relevant MDL’s leadership structure or is instead referring cases to co-counsel who are, and how that relationship affects communication and case updates going forward. Since mass tort litigation often unfolds over years with long stretches of limited visible activity while common issues get litigated, understanding upfront how a firm will keep a client informed during those quieter periods is a reasonable and specific question to ask before signing on.

The Truth about Injury Claims in the U.S.

Not every injury claim is created equal, and increasingly, a large share of significant injury litigation in the U.S. runs through the mass tort and MDL system rather than individual courtroom proceedings. Recognizing which category a case belongs to, and choosing representation experienced in that specific category, is one of the more consequential and least understood decisions an injured person can make.