February 4, 2026 | Personal Injury
When someone is injured due to another person’s careless behavior, they may have grounds for a personal injury claim. However, proving that an accident occurred is not enough. To recover compensation, an injured person must show that the defendant’s conduct was the proximate cause of their injuries.
Proximate cause is a foundational concept in Pennsylvania personal injury law. It establishes the legal connection between a defendant’s actions and the harm suffered. Without this connection, even negligent or reckless behavior may not result in legal liability.
Understanding the Two Types of Causation
Pennsylvania personal injury law requires injured victims to prove two types of causation. The first is actual cause, also called cause in fact. The second is the proximate cause, sometimes called the legal cause.
Actual cause uses the “but for” test. Would your injury have happened “but for” the defendant’s actions? If the answer is no, an actual cause exists. For example, if a driver runs a red light and hits your car, you would not have been hurt but for that decision.
However, the actual cause alone is not enough. Courts also require proximate cause, which places limits on liability. This asks whether the harm was a foreseeable result of the defendant’s conduct.
How Foreseeability Determines Liability
The key question in proximate cause analysis is whether the defendant should have known their actions could lead to the type of injury that occurred. A defendant is only liable for injuries that were a foreseeable consequence of their behavior. This prevents people from being held responsible for bizarre outcomes no one could have anticipated.
For instance, imagine a store owner leaves a wet floor without warning signs. It is foreseeable that a customer might slip and break their arm. The store owner would be the proximate cause. But if a power surge malfunctions medical equipment during the victim’s surgery, the store owner would not be liable.
Real-World Examples of Proximate Cause
Proximate cause appears in many types of personal injury cases throughout Pennsylvania. The following examples show how courts analyze this element.
Consider these common scenarios:
- A landlord knows about a broken stairway railing but fails to repair it. A tenant falls through and suffers injuries. The landlord’s failure to fix a known hazard is the proximate cause.
- A driver texts while behind the wheel and rear-ends the car in front of them. The distracted driving is the proximate cause of the crash.
- A manufacturer produces a product with defective brakes. When the brakes fail and cause an accident, the defect is the proximate cause.
- A bar serves alcohol to a visibly intoxicated customer who then drives and causes a crash. The bar’s decision to over-serve may be the proximate cause.
In each case, the defendant’s conduct was closely tied to the harm in a predictable way.
Intervening and Superseding Causes
In some cases, an unexpected event occurs between the defendant’s conduct and the plaintiff’s injury. This is known as an intervening cause. If that event was unforeseeable and sufficient to break the causal chain, it may be classified as a superseding cause.
When a superseding cause exists, the original defendant may no longer be legally responsible. For example, if someone is injured in a car accident and later struck by lightning while waiting for assistance, the lightning strike would likely be considered a superseding cause.
By contrast, foreseeable intervening events do not break the chain of causation. A driver who causes a collision on a busy roadway may still be liable if another vehicle subsequently strikes the injured person.
How Pennsylvania Law Affects Your Claim
Pennsylvania follows a modified comparative negligence rule. This law reduces your compensation if you share some fault for the accident. If you are 51% or more at fault, you cannot recover any damages.
This means proving proximate cause matters on both sides. The defendant may argue that your own actions were the proximate cause of your injuries. An experienced lawyer can gather evidence to show that the defendant’s conduct was the primary cause of your harm.
Evidence Used To Prove Proximate Cause
Proving proximate cause typically requires strong supporting evidence. Common forms of evidence include:
- Police or incident reports
- Witness statements
- Photographs or video of the scene
- Medical records linking injuries to the accident
Expert testimony is also frequently used. Accident reconstruction experts can explain how an incident occurred, while medical experts can connect the injuries to the underlying event.
Contact Fellerman & Ciarimboli, Law PC for Help
Proximate cause is often one of the most confusing and contested parts of a personal injury case. When the other side denies responsibility or claims something else caused your injuries, it can be difficult to know where you stand.
For help with your Pennsylvania personal injury case, contact Fellerman & Ciarimboli, Law PC. We offer a free consultation with a Kingston personal injury lawyer.
For more information, contact Fellerman & Ciarimboli, Law PC to schedule a free consultation with our experienced personal injury attorneys. We proudly serve clients in Scranton, Kingston, Berwick, PA, and Columbia, Lackawanna, Luzerne Counties. We’re here to fight for your rights with trusted, experienced legal support. Let us help you get the justice and compensation you deserve.
Fellerman & Ciarimboli, Law PC Scranton
436 Spruce St Suite 100, Scranton, PA 18503
(570) 714-4878
Fellerman & Ciarimboli, Law PC Kingston
183 Market St #200, Kingston, PA 18704
(570) 714-4878
Fellerman & Ciarimboli, Law PC Berwick
120 W Front St, Berwick, PA 18603
(570) 714-4878