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How Pre-Existing Injuries Affect Your Car Accident Case

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Attorney Robert M Knowles
Last Updated: April 15, 2026
Legally Reviewed By: Robert M. Knowles

Attorney & Partner At Knowles Law Firm

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A car accident can turn a manageable health condition into a life-altering one. If you already had a back injury, a history of concussions, or a chronic condition like arthritis, a collision may cause far more damage to your body than it would to someone in perfect health. This raises a question many injured Nebraskans ask: Does having a pre-existing injury mean you can’t recover full compensation in your car accident case?

The short answer is no. Pre-existing injuries do not disqualify you from pursuing a claim, but they do add layers to how your case is built and argued. At Knowles Law Firm, our family-owned team has spent over 55 years helping injured Nebraskans recover the compensation they deserve. We understand how insurance companies approach these cases, and we know how to push back.

Does a Pre-Existing Injury Reduce Your Car Accident Compensation?

It can, but it doesn’t have to. Insurance adjusters will almost always investigate your medical history after a car accident, and they will use any prior injury or condition they find as a reason to minimize your payout. Their strategy argues that the damage existed before the accident, so the at-fault driver shouldn’t be responsible.

Nebraska law, however, protects injury victims through the so-called eggshell plaintiff doctrine. According to the Cornell Law School Legal Information Institute, personal injury recovery in tort law covers economic and non-economic damages resulting from another party’s negligence. The eggshell doctrine builds on this by holding that the at-fault party must take the victim as they find them.

What Is the Eggshell Plaintiff Rule and How Does It Protect You?

The eggshell plaintiff rule is a legal doctrine holding that a defendant cannot escape liability simply because a victim was more vulnerable to injury. The name comes from the idea that if someone has a skull as fragile as an eggshell, the person who strikes them is still responsible for all resulting harm.

This rule matters enormously in Nebraska car accident cases involving pre-existing conditions. Some of the most common pre-existing conditions that come into play include:

  • Prior back or neck injuries
  • Osteoporosis or brittle bones
  • Previous head injuries or concussions
  • Chronic conditions

The at-fault driver’s liability does not decrease because your body responded more severely. Your injury is your injury, and the law recognizes that.

How Do Insurance Companies Use Pre-Existing Injuries Against You?

Insurance companies will request your full medical history after a claim is filed. They often attempt to argue that your current pain or limitations were present before the accident and are simply part of your ongoing condition rather than a result of the collision. This is one of the most common tactics used to reduce or deny settlements.

Understanding how car insurance claims work in Nebraska is critical when you have a pre-existing injury. Thorough documentation is your best defense, including medical records from before and after the accident, imaging studies showing changes to your condition, and statements from your treating physicians that clearly link the worsening of your condition to the crash.

How Can You Prove Your Injury Was Worsened by the Accident?

Proving aggravation of a pre-existing condition requires clear, well-organized medical evidence. The goal is to draw a precise line between where your health stood before the accident and where it stands after. Your attorney will work to gather the evidence needed to show the difference, which directly influences car accident settlement amounts in Nebraska cases involving prior injuries.

Strong cases involving pre-existing conditions typically rely on medical records predating the accident, diagnostic imaging showing new or worsened damage, expert medical testimony explaining how the collision aggravated your condition, and records of treatment you did not require before the crash. Each of these pieces builds a picture of causation rather than coincidence.

Contact Knowles Law Firm After a Nebraska Car Accident

Pre-existing injuries make car accident claims more involved, but they do not make them unwinnable. The eggshell plaintiff doctrine exists precisely because the law recognizes you are not required to be in perfect health to receive full protection from someone else’s negligence. Knowles Law Firm has the depth of knowledge and the client-first approach needed to build a strong case on your behalf, even when your medical history is being used against you.

If a car accident made your pre-existing condition worse, you may be entitled to more compensation than an insurer has offered you. Reach out to Knowles Law Firm today. Complete our contact form to schedule a free consultation with an experienced car accident lawyer.

Attorney Robert M Knowles
About Our Attorney

Robert M. Knowles

Attorney & Partner at Knowles Law Firm

Robert has tried cases in both state and federal courts and was selected as one of the top 100 litigation lawyers in Nebraska for 2014 by the American Society of Legal Advocates. Less than 1.5 percent of lawyers nationally are selected for this recognition. He is rated AV by Martindale-Hubbell which is the highest rating an attorney can obtain. He was also selected by Martindale-Hubbell as a 2019 Top Rated Lawyer.

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