Can I sue when a defective product causes injury?

Product Liability Law: When Defective Products Cause Injury

Every year, millions of Americans are injured by products that turn out to be defective or unreasonably dangerous. Product liability law — a branch of civil law that holds manufacturers, distributors, and sellers responsible for defective products they place into commerce — provides a legal framework for injured consumers to seek compensation without needing to prove that the manufacturer was careless.

Understanding product liability requires knowing the different types of defects, the legal theories available, who can be held responsible, and what evidence is critical to a successful claim.

The Foundation: Strict Product Liability

The most important principle in modern product liability law is strict liability. Unlike traditional negligence, strict product liability does not require the injured person to prove that the manufacturer acted unreasonably or carelessly. Instead, it imposes liability whenever a product reaches the consumer in a defective condition that makes it unreasonably dangerous, and that defect causes injury.

The rationale for strict liability is that manufacturers are in the best position to know about their products' dangers, to design products safely, and to spread the cost of product-related injuries through product pricing and insurance — while injured consumers often lack the technical knowledge to identify what went wrong. Strict liability creates strong incentives for product safety without requiring the injured consumer to unravel the manufacturer's internal design and quality control decisions.

Three Types of Product Defects

Design Defects

A design defect exists when the product's basic design — the blueprint from which every unit is manufactured — creates an unreasonable danger. Every product made from that design shares the same defect. Courts typically evaluate design defects using one of two tests:

• The consumer expectations test: The product fails to perform as safely as an ordinary consumer would reasonably expect when used in an intended or foreseeable manner
• The risk-utility test: The product's risks outweigh its utility — considering factors like the probability of harm, the severity of potential injury, the availability of safer alternative designs, and the cost of implementing those alternatives

A power tool designed without an adequate blade guard, an SUV with a known rollover instability caused by a high center of gravity, or a children's toy with a choking hazard are examples of potential design defect cases.

Manufacturing Defects

A manufacturing defect occurs when a specific unit deviates from the manufacturer's own design specifications during the production process, making that particular unit dangerous. The design may be perfectly safe; the problem is that this specific product was not made correctly. A structural weld that was not performed properly, an off-spec component substituted during production, or a contaminated batch of a pharmaceutical product are manufacturing defect examples. These cases are often supported by evidence that the product deviated from design specifications or from other units in the same product line.

Failure to Warn (Marketing Defects)

A failure-to-warn claim arises when a product has inherent risks that are not obvious to ordinary users, and the manufacturer failed to provide adequate instructions or warnings. The product itself may be safely designed and properly manufactured — but without adequate warning of its dangers and instructions for safe use, it becomes unreasonably dangerous. Common examples include medications without adequate dosage warnings or contraindication notices, industrial chemicals without proper hazard communication, and power equipment without warnings about operating conditions that create risk of injury.

Who Can Be Held Liable

Strict product liability in most states extends throughout the commercial distribution chain — to everyone who placed the defective product into the stream of commerce:

• Manufacturers: Of the finished product and of defective component parts incorporated into the final product
• Distributors and wholesalers: Who distributed the product between manufacturer and retailer
• Retailers: Who sold the product to the consumer

This breadth of potential defendants is practically significant when the manufacturer is based outside the United States or has gone bankrupt. A U.S. retailer may be held strictly liable even if it played no role in designing or manufacturing the defective product, though some states have enacted seller liability shields for retailers who did not design or manufacture the product and whose manufacturer is amenable to U.S. jurisdiction.

The Role of the CPSC

The Consumer Product Safety Commission (CPSC), created by the Consumer Product Safety Act (15 U.S.C. Section 2051), is the federal regulatory agency responsible for consumer product safety. The CPSC has authority to:

• Issue mandatory safety standards for consumer products
• Require manufacturers to report known product hazards and defects
• Order recalls of unsafe products
• Pursue civil penalties against manufacturers who fail to report known hazards

When a product has been recalled, the recall notice is important evidence of a known defect in product liability litigation. CPSC recall records are publicly accessible at cpsc.gov/Recalls. Injured consumers can report unsafe products to SaferProducts.gov, which feeds into the CPSC's hazard monitoring system.

Proving Your Case: What Evidence Matters Most

The most critical evidence consideration in a product liability case is often the product itself. The defective product must be preserved in its post-accident condition and made available for expert inspection. Actions to take immediately after a product causes injury:

1. Do not discard, repair, or return the product. The product is your most important piece of evidence. If it is destroyed or returned to the seller or manufacturer, your case may be severely compromised.
2. Photograph everything immediately — the product in its post-accident condition, the accident scene, and your injuries before they heal.
3. Preserve all documentation — the instruction manual, packaging, warning labels, receipt, and any warranty or registration documents.
4. Check for recalls at CPSC.gov and, for vehicle issues, NHTSA's safercar.gov. A prior recall of the same product for the same defect is significant evidence.
5. Do not give statements to the manufacturer or its insurer without first consulting an attorney. Manufacturers typically investigate product liability claims and may reach out early to gather information that could later be used to minimize liability.

Product liability cases almost always require expert witnesses. A mechanical engineer, materials scientist, or other technical expert must typically examine the product and provide an opinion about the nature of the defect and the causal relationship between the defect and the injury. This is why preserving the physical product is so critical — the expert's analysis is based on examination of the actual item.

Damages in Product Liability Cases

Compensable damages in a successful product liability case may include:

• Medical expenses — past treatment and projected future medical needs related to the injury
• Lost income — both wages lost during recovery and diminished future earning capacity if the injury causes lasting disability
• Pain and suffering — physical pain and emotional distress caused by the injury and recovery
• Property damage — if the defective product damaged other property
• Punitive damages — in cases involving particularly egregious manufacturer conduct, such as knowingly selling a product despite documented safety concerns

Class action lawsuits are sometimes appropriate in product liability cases when large numbers of consumers were injured by the same defect. If you received a class action notice for a product you own or have been injured by, consulting an attorney about whether to opt out (to pursue an individual claim) or remain in the class is advisable. Individual cases typically allow for larger individualized compensation; class action settlements distribute smaller amounts among all class members.

When to Consult an Attorney

Given the complexity of product liability litigation — the need for expert witnesses, the costs of investigating a product defect, and the resources that manufacturers bring to their defense — most injured consumers benefit from consulting a product liability attorney. Most such attorneys work on contingency, meaning no upfront cost to the client, and the attorney advances investigation costs. Early consultation is advisable because statutes of limitations typically begin running from the date of injury, and preserving critical evidence (starting with the product itself) requires immediate action.

Comparative Fault and Assumption of Risk

Manufacturers routinely raise defenses in product liability cases, and understanding them helps set realistic expectations. The most common defenses include:

• Comparative or contributory fault: If the injured person's own conduct contributed to the injury — for example, by ignoring clear safety warnings, removing a required safety guard, or using the product in a manner that substantially increased the risk — the manufacturer may seek to reduce or eliminate liability proportionally. Most states apply comparative fault principles that reduce damages in proportion to the plaintiff's share of fault but do not bar the claim entirely unless the plaintiff was more than 50% at fault.
• Product misuse: The product was used in a manner that was not intended and not reasonably foreseeable. This defense requires showing that the specific misuse was outside the range of uses the manufacturer should have anticipated, which can be difficult when the "misuse" was common or obvious.
• Assumption of risk: The injured person voluntarily used the product knowing of the risk that caused the injury. This defense is stronger when the danger was clearly disclosed and the user proceeded despite the warning.
• Alteration or modification: The product was materially altered after it left the manufacturer's control, and the modification was the cause of the injury. Minor modifications or modifications that were themselves foreseeable may not support this defense.

The strength of these defenses depends heavily on the specific facts of each case and the applicable state law. An experienced product liability attorney can assess how these defenses are likely to apply in your situation and advise on the strength of your claim.

Pharmaceutical and Medical Device Cases

Product liability principles apply to pharmaceutical drugs and medical devices, though these cases involve additional complexity due to federal regulatory pre-emption and the learned intermediary doctrine. FDA-approved drugs and devices may be subject to certain limitations on state failure-to-warn claims in some contexts. The learned intermediary doctrine holds that a drug manufacturer's duty to warn runs to the prescribing physician rather than directly to the patient — meaning adequate warning to the doctor may discharge the manufacturer's duty even if the patient was not separately warned. However, these doctrines have important exceptions, particularly for direct-to-consumer advertising of prescription drugs. Pharmaceutical and medical device product liability cases benefit from specialized legal experience in this area.

Product Recalls and Their Legal Significance

When a product recall exists for the product that injured you, it can have significant implications for your product liability case:

• A recall confirms that the manufacturer or the CPSC recognized a safety defect in the product — directly supporting the existence of the defect that is at the center of your claim
• The recall documentation may describe the defect and the associated risk of injury, which can be used to support causation
• If the manufacturer knew of the defect before it was publicly recalled — and you were injured during the period when the manufacturer knew but had not yet issued the recall — this prior knowledge may support a punitive damages claim in states that allow punitive damages for egregious conduct
• If you were injured after receiving a recall notice but before replacing or repairing the product, comparative fault principles may apply

Check the CPSC recall database (cpsc.gov/Recalls) and, for vehicle defects, the NHTSA recall database (nhtsa.gov/recalls) to determine whether your product or vehicle has been the subject of any recall. If your product is currently under recall and you have not yet been injured, follow the recall instructions to obtain the free repair or replacement.

International Manufacturers and Jurisdictional Challenges

An increasing proportion of consumer products sold in the United States are manufactured abroad. When a foreign manufacturer is responsible for a defective product, pursuing a claim against the manufacturer directly may be difficult — requiring service of process in a foreign country and raising questions about whether a U.S. court can exercise personal jurisdiction over the manufacturer. In these cases, the distribution chain theory of liability becomes particularly important: U.S. retailers, distributors, and importers who placed the foreign-manufactured product into the stream of U.S. commerce may be liable under the product liability laws of the state where the injury occurred, even though they did not manufacture the defective product. An attorney experienced in international product liability cases can advise on the best defendants to pursue when the manufacturer is foreign.