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What Happens if a Car Accident Worsens a Pre-Existing Condition?

What Happens if a Car Accident Worsens a Pre-Existing Condition?

Car accidents can cause a wide range of injuries, from minor bruises to serious, life-changing conditions. But what happens if you were already dealing with a medical issue before the crash? 

Many accident victims worry that having a pre-existing condition will prevent them from recovering compensation. In reality, the law often protects people whose prior injuries or conditions were made worse by someone else’s negligence.

At Zehl & Associates, our trial attorneys have recovered Billions for injury victims, taking on the largest corporations and insurance companies in the world — and not just winning, but securing record-setting verdicts and settlements. When insurers try to blame your injuries on a pre-existing condition, we know exactly how to hold them accountable and fight to recover the maximum compensation possible.

Understanding how pre-existing conditions affect personal injury claims can help you protect your rights after a crash.

What Is a Pre-Existing Condition?

A pre-existing condition is any injury, illness, or medical issue that existed before the car accident occurred. 

These conditions can include:

  • Chronic back or neck pain
  • Herniated or bulging discs
  • Arthritis or joint problems
  • Previous fractures or surgeries
  • Degenerative disc disease
  • Prior traumatic brain injuries

Even if a condition was stable or manageable before the accident, a collision can aggravate it and cause new pain, complications, or limitations.

The “Eggshell Plaintiff” Rule

One of the most important legal concepts in cases involving pre-existing conditions is known as the “eggshell plaintiff” rule. This rule means that a negligent party must take the victim as they find them.

In other words, if someone causes a car accident, they are responsible for the harm that results—even if the victim was more vulnerable to injury than another person might be because of a prior condition.

For example, if someone with a history of back problems is involved in a crash that significantly worsens their pain or causes additional spinal damage, the at-fault driver may still be liable for those worsened injuries.

Aggravation of a Pre-Existing Condition

In personal injury law, the key issue is often whether the accident aggravated a pre-existing condition.

An aggravation occurs when the accident:

  • Makes an existing injury more severe
  • Causes symptoms to return after they had improved
  • Speeds up the progression of a degenerative condition
  • Creates new complications related to a prior injury

If medical evidence shows that the crash made your condition worse, you may be entitled to compensation for the additional harm caused by the accident.

Challenges in These Claims

Although the law allows compensation for aggravated injuries, cases involving pre-existing conditions can be more complicated.

Insurance companies frequently try to argue that:

  • Your pain existed before the accident
  • The crash did not significantly change your condition
  • Your current symptoms are unrelated to the collision

These tactics are often used to reduce or deny claims. Adjusters may closely examine your medical history to look for reasons to dispute the extent of your injuries.

The Importance of Medical Documentation

Strong medical documentation is critical in cases involving pre-existing conditions. Medical records can help establish the differences between your condition before and after the accident.

Important evidence may include:

  • Prior medical records showing your baseline condition
  • Diagnostic imaging, such as MRIs or CT scans
  • Doctor’s notes describing changes in symptoms
  • Expert medical opinions linking the accident to the worsening condition
  • Physical therapy or treatment records

A medical professional may be able to explain how the crash aggravated your condition or accelerated an underlying issue.

Seeking Medical Care Immediately

If you have a pre-existing condition and are involved in a car accident, it is important to seek medical attention as soon as possible—even if your symptoms initially seem mild.

Prompt treatment can:

  • Document new or worsening symptoms
  • Prevent further complications
  • Create a clear medical timeline linking the accident to your injuries

Delaying care may make it easier for insurance companies to argue that your injuries were unrelated to the crash.

Compensation for Aggravated Injuries

If a car accident worsens a pre-existing condition, you may still be able to pursue compensation for damages such as:

However, compensation generally applies only to the additional harm caused by the accident, not the underlying condition itself.

Contact a Houston Car Accident Lawyer at Zehl & Associates for a Free Consultation 

Having a pre-existing condition does not mean you lose the right to pursue a personal injury claim. If a negligent driver worsens an existing injury or medical issue, they can still be held responsible for the additional harm caused by the accident. 

The Houston car accident lawyers at Zehl & Associates have recovered Billions for injured clients, secured record verdicts and settlements, and remain undefeated in the courtroom. Contact us today for a free consultation to discuss your case.

Zehl & Associates Injury & Accident Lawyers – Houston
2700 Post Oak Blvd #1000, Houston, TX 77056
(888) 603-3636
Open 24 hours

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Zehl & Associates Injury & Accident Lawyers – Midland
306 W Wall St Suite 701, Midland, TX 79701
(432) 220-0000
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