Can a Pre-Existing Injury Hurt Your Car Accident Claim in Chicago?

A pre-existing injury can complicate a car accident claim in Chicago, but it does not automatically prevent you from recovering compensation. Illinois law generally allows accident victims to pursue damages when a crash worsens an existing medical condition or aggravates prior injuries.

Insurance companies often try to use medical history against injured drivers by arguing that pain, treatment needs, or physical limitations existed before the collision. However, if the accident made your condition worse or caused new complications, you may still have a valid claim.

If you are concerned that a previous injury could affect your case, contact Ankin Law at 312-600-0000 to discuss your legal rights and possible compensation options.

Key Takeaways

  • A pre-existing injury does not automatically bar a car accident claim in Chicago.
  • You may still recover compensation if the crash aggravated or worsened a prior condition.
  • Insurance companies frequently attempt to blame injuries on medical history instead of the accident.
  • Medical records and expert opinions are often critical in proving aggravated injuries.
  • Prompt treatment and consistent documentation can strengthen your claim.

What Is Considered a Pre-Existing Injury?

A pre-existing injury or medical issue is any health condition that existed before the accident occurred. Pre-existing condition refers to a health problem that was present before new insurance coverage or medical treatment considerations arise.

In car accident claims, common pre-existing injuries include:

  • Herniated discs
  • Degenerative disc disease
  • Prior neck or back injuries
  • Arthritis
  • Knee injuries
  • Shoulder damage
  • Previous surgeries
  • Chronic pain disorders

Having one of these conditions does not mean you lose the right to compensation after a crash. The legal issue is whether the accident caused a measurable worsening of the condition or created additional injuries requiring treatment.

Can You Still Recover Compensation if You Had a Prior Injury?

Illinois law generally follows the principle that negligent drivers take victims as they find them. This is commonly known as the “eggshell plaintiff” doctrine. That means if a person with an existing injury suffers greater harm because of a crash, the at-fault driver may still be responsible for the additional damage caused.

For example:

  • A person with prior back pain may suffer a new spinal injury after a rear-end collision.
  • Someone with arthritis may experience increased pain and mobility loss after impact.
  • A prior shoulder injury may worsen and require surgery following a crash.

The existence of a previous injury does not eliminate liability when an accident materially aggravates the condition. An experienced personal injury attorney can help gather medical evidence demonstrating how the collision worsened your health condition.

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

Insurance adjusters frequently review medical records looking for any indication that symptoms existed before the accident.

Their goal is often to argue that:

  • Your injuries are unrelated to the crash
  • Your condition already existed
  • Treatment was unnecessary
  • Pain levels were not caused by the collision
  • Future medical care is unrelated

In some cases, insurers may attempt to deny claims entirely by focusing heavily on prior diagnoses or old injuries. This is why consistency in medical documentation matters. Gaps in treatment, conflicting statements, or incomplete records may allow insurers to argue that your symptoms are unrelated to the accident.

Claims involving pre-existing conditions often become more heavily disputed than straightforward injury cases.

What Evidence Helps Prove a Car Accident Made Your Injury Worse?

Medical evidence is one of the most important factors in proving aggravation injuries.

Strong evidence may include:

  • Prior medical records
  • Post-accident imaging studies
  • MRI or CT scan comparisons
  • Physician opinions
  • Surgical recommendations
  • Physical therapy records
  • Pain management evaluations

Doctors may be asked to explain how the crash changed your condition, accelerated degeneration, or created new symptoms. For example, a patient with manageable lower back pain before a crash may suddenly require surgery afterward due to aggravated disc damage. Evidence showing a clear difference between pre-accident and post-accident functioning can strengthen a claim.

Can a Pre-Existing Injury Reduce the Value of Your Claim?

A prior injury can affect the value of a settlement if insurers successfully argue that part of the condition existed before the accident.

However, compensation may still be available for:

  • Aggravation of existing injuries
  • Additional pain and suffering
  • New medical expenses
  • Lost earning capacity
  • Reduced quality of life
  • Future treatment related to worsening symptoms

The key issue is separating pre-accident conditions from accident-related aggravation. This often requires detailed medical analysis and expert testimony. Understanding these distinctions is one of the important things to know about personal injury cases involving prior medical conditions and disputed injuries.

What Happens if the Insurance Company Denies Your Claim?

Insurance companies frequently dispute claims involving prior injuries, especially when large damages are involved.

If negotiations fail, the case may proceed into formal litigation.

During litigation, both sides may present:

  • Medical experts
  • Accident reconstruction evidence
  • Diagnostic imaging
  • Employment records
  • Testimony from treating physicians

Defense attorneys often attempt to argue that current symptoms were inevitable due to aging or prior conditions rather than the crash itself. Plaintiffs, meanwhile, may present evidence showing that they were functioning normally before the collision and experienced major declines afterward. Many aggravation injury claims are resolved through settlement, but some require court intervention when liability or damages remain disputed.

Pre-existing injuries can make car accident claims more complex, but they do not prevent injured victims from pursuing compensation when a crash worsens an existing condition. If you are concerned that your medical history could affect your case, contact Ankin Law at 312-600-0000 to discuss your legal options and potential claim.

Chicago personal injury and workers’ compensation attorney Howard Ankin has a passion for justice and a relentless commitment to defending injured victims throughout the Chicagoland area. With decades of experience achieving justice on behalf of the people of Chicago, Howard has earned a reputation as a proven leader in and out of the courtroom. Respected by peers and clients alike, Howard’s multifaceted approach to the law and empathetic nature have secured him a spot as an influential figure in the Illinois legal system.

Years of Experience: More than 30 years
Illinois Registration Status: Active
Bar & Court Admissions: Illinois State Bar Association, U.S. District Court, Northern District of Illinois, U.S. District Court, Central District of Illinois
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