What if a Car Accident Aggravates a Pre-Existing Injury? - HHJ Trial Attorneys
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What to Do When Your Car Accident Aggravates a Pre-Existing Injury

pre existing injury
Founding partner of HHJ Trial Attorneys Elliott Jung black and white portrait

Gerry Spence Trial Lawyers College

Adam copy

University of California, Berkeley

Updated: April 17, 2025

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Your current daily struggles from the previous injury take a sudden turn when—crash! A reckless driver slams into your vehicle and turns your previously manageable condition into a complete disaster. The dull back pain that used to bother you only occasionally is now excruciating. The partially healed knee? It requires surgery—again.

Most insurance companies have extensive knowledge of how to take advantage of this situation. They follow a standard procedure when handling claims: denying responsibility based on your medical records, claiming your injuries predated the accident, or providing a settlement that does not pay for your medical expenses. They don’t want you to understand that accident victims have legal rights to receive compensation for worsening pre-existing medical conditions.

Understanding the “Eggshell Plaintiff” Rule

Under California law, the “eggshell plaintiff” doctrine protects accident victims with pre-existing conditions. This legal principle states that defendants must take their victims as they find them—regardless of any pre-existing vulnerabilities. The at-fault driver can’t escape responsibility just because of a previous injury.

Insurance companies may try to minimize your claim by blaming your current pain on your medical history. However, the eggshell plaintiff rule stands firmly on your side. This rule becomes especially important when dealing with insurance adjusters who will inevitably ask about your medical history. They’re searching for reasons to reduce your compensation, not to understand your medical needs.

How Do You Document the Aggravation of a Pre-Existing Injury?

Proper documentation forms the backbone of a successful claim for aggravated injuries. Start by seeking immediate medical attention after your accident, even if you believe your symptoms are just a flare-up of your existing condition. Tell your healthcare provider about your previous injury and how your symptoms have changed since the accident.

Request copies of your medical records from before and after the accident. These records serve as compelling evidence showing the contrast between your pre-accident and post-accident conditions. Keep a detailed journal documenting your pain levels, limitations, and how they differ from your pre-accident state. Note activities you could perform before the accident that now cause pain or are impossible.

The Importance of Medical Experts in Your Case

Medical experts play a pivotal role in cases involving aggravated pre-existing injuries. These professionals can clearly articulate the difference between your condition before and after the accident. They establish the causal connection between the accident and your symptoms worsening—a connection that insurance companies will typically dispute. Your case may benefit from multiple types of expert testimony, including that of treating physicians who managed your care before and after the accident, medical specialists, life care planners who can calculate the additional costs of managing your now-worsened condition, and vocational rehabilitation experts if your aggravated injury affects your ability to work.

What Compensation Can You Recover for Aggravated Injuries?

When an accident worsens a pre-existing condition, you’re entitled to compensation for that additional harm—not the pre-existing condition itself. Your compensation should cover the difference between your condition before and after the accident. Recoverable damages typically include:

  • Medical Expenses: Costs for treatments related explicitly to the aggravation of your injury, including doctor visits, medications, surgeries, and rehabilitation.
  • Lost Wages and Reduced Earning Capacity: Compensation for work missed due to your worsened condition and any long-term impact on your ability to earn.
  • Pain and Suffering: Monetary recognition of the increased physical discomfort and emotional distress resulting from the aggravation.
  • Home Modifications and Assistance: Funds for necessary adaptations to your living environment if your aggravated condition requires it.

Accurately calculating these damages requires medical expertise and legal knowledge to ensure you receive full compensation for how the accident impacted your condition.

Why Insurance Companies Fight These Claims

Insurance adjusters employ specific tactics when handling claims involving pre-existing conditions. They’ll scour your medical history for the slightest reason to deny or devalue your claim. Common strategies include requesting your entire medical history to find unrelated conditions, claiming your current symptoms are merely a natural progression of your pre-existing condition, and offering quick, low settlements before you fully understand the extent of your aggravated injury.

Insurance companies count on your lack of legal knowledge when dealing with complex pre-existing condition claims. They know these cases require specialized medical evidence and legal expertise—resources they hope you cannot access.

Building a Solid Legal Strategy

Creating a winning strategy for an aggravated injury claim requires establishing your baseline condition before the accident. Use previous medical records and demonstrate the accident’s impact through medical evidence and documentation of your current circumstances. Allow sufficient time for your medical condition to stabilize before attempting to resolve your claim. This patience ensures you understand the full extent of the aggravation before agreeing to any settlement. Rushing this process could lead to inadequate compensation that fails to cover long-term needs.

Taking Action After Your Accident

When an accident aggravates a pre-existing condition, you face unique challenges in securing fair compensation. Don’t let an insurance company convince you that your claim is worth less because you had a pre-existing condition. With proper medical documentation, expert testimony, and legal guidance, you can receive compensation that truly reflects the impact of the accident on your health and well-being. Contact our California personal injury attorneys today to discuss how we can help document and prove the worsening of your pre-existing injury to secure the compensation you deserve.

professional attorney and founding partner of HHJ Elliott Jung
Elliot H. Jung

Gerry Spence Trial Lawyers College

Elliot H. Jung is a trial attorney at HHJ Trial Attorneys who focuses on helping injured clients navigate complex personal injury cases. With an emphasis on advocacy, case strategy, and client support, he works to secure fair outcomes for people facing medical bills, lost wages, and other accident-related losses. His approach combines legal experience with a commitment to clear communication and effective representation.

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