Does a Pre-Existing Condition Prevent You From Filing an Injury Claim?

Many injury victims hesitate to file a claim after a car accident because they already had a health condition before the crash. Insurance adjusters often use this as a tactic to deny or undervalue legitimate claims, arguing, “You were already hurt before the accident.”

In California, however, having a pre-existing condition does not disqualify you from receiving compensation. If the accident made your condition worse or caused new complications, you still have the right to recover damages. Understanding how pre-existing conditions interact with personal injury law can significantly impact your case.

What Counts as a Pre-Existing Condition?

A pre-existing condition refers to any health issue you had before the accident occurred. Common examples include the following.

• Degenerative disc disease or chronic back pain
• Arthritis or joint inflammation
• Prior concussions or head trauma
• Old fractures or sports injuries
• Anxiety, depression, or PTSD
• Diabetes or other metabolic disorders

These conditions can make you more vulnerable to new injuries or exacerbate existing pain when a crash occurs. For example, someone with mild back pain could suffer a herniated disc after a rear-end collision, turning a manageable issue into a disabling condition.

The “Eggshell Plaintiff” Rule in California

California law follows what’s known as the Eggshell Plaintiff Rule (or “take your victim as you find them” rule). Under this legal principle, the at-fault party is responsible for all harm caused by their negligence, even if the victim was more fragile or predisposed to injury than a healthy person.

In other words, if you had a vulnerable spine, and a car crash made it worse, the defendant cannot argue that you deserve less compensation because of your condition. They’re still responsible for the aggravation of your pre-existing injury.

This rule is well-established in California case law and appears in the California Civil Jury Instructions (CACI) No. 3927, which instructs juries that a defendant must compensate the plaintiff for any worsening of a pre-existing condition.

The Difference Between a New Injury and an Aggravated One

To build a strong case, it’s important to understand whether you suffered a new injury or an aggravation of an old one.

• New injury. The crash caused trauma to an area that was previously healthy (e.g., a broken arm or whiplash).
• Aggravated injury. The crash worsened a prior condition, increasing pain, limiting mobility, or accelerating degeneration.

Medical records play a critical role here. Your attorney can compare pre-accident and post-accident medical reports to show exactly how your condition changed after the collision.

How Insurance Companies Exploit Pre-Existing Conditions

Insurance adjusters are trained to minimize claim payouts, and a pre-existing condition gives them a ready-made excuse. Here’s how they often attempt to use it against you.

1. Claiming your symptoms are unrelated.

   They’ll argue your pain existed before the crash and that the accident didn’t make it worse.

2. Demanding irrelevant medical history.

   Insurers may request years of medical records to find unrelated issues and blame them for your current condition.

3. Offering low settlements.

   By labeling your injuries as “old,” they’ll offer far less than what’s needed for treatment or long-term care.

4. Questioning your credibility.

   They may accuse you of exaggerating your symptoms or hiding your medical history.

A skilled California personal injury lawyer will anticipate these tactics and work with medical experts to connect your current symptoms directly to the crash.

Proving an Accident Aggravated a Pre-Existing Condition

Proving aggravation requires evidence that the accident made your condition worse than it was before. A strong case includes the following.

• Pre-accident medical records. Establish your baseline health.
• Post-accident diagnostic tests. MRIs, CT scans, and doctor notes showing new or worsened damage.
• Expert testimony. Medical specialists who can explain how trauma caused the aggravation.
• Personal documentation. Journals or testimony showing how your ability to work, exercise, or live independently changed after the crash.

An experienced auto accident attorney in Los Angeles can compile this evidence and present it clearly to insurance companies or the court.

California’s Comparative Fault System Still Applies

Even if you had a pre-existing condition, your right to compensation remains intact, but your recovery may be affected if you share some fault for the accident. California follows a pure comparative negligence rule, meaning your damages are reduced by your percentage of fault.

For example, if you’re awarded $100,000 but found 10% responsible, your recovery becomes $90,000. Your attorney’s role is to minimize this percentage and prevent insurers from unfairly inflating it.

Common Examples of Pre-Existing Condition Claims in California

1. Whiplash aggravating prior neck pain. A small fender-bender worsens chronic cervical pain, requiring physical therapy.
2. Back injury accelerating degenerative disc disease. A collision causes nerve impingement in an already vulnerable spine.
3. Mild PTSD worsening after a traumatic crash. Emotional distress intensifies due to the new trauma.
4. Old knee injury worsened by seatbelt impact. Pre-existing arthritis becomes severe enough to require surgery.

Each of these scenarios demonstrates that the crash, not the prior condition, created new damage or pain deserving of compensation.

Why Legal Representation Matters

Insurance companies rely on complexity and confusion to devalue claims involving pre-existing conditions. Having a top-tier Los Angeles personal injury lawyer ensures you’re not manipulated by these tactics.

A qualified attorney will do the following.

• Communicate directly with insurers to prevent overreach.
• Coordinate with doctors to document the aggravation of your injuries.
• Calculate long-term damages, including ongoing treatment or therapy.
• Negotiate aggressively or take your case to trial if necessary.

What to Do If You Have a Pre-Existing Condition and Were Hurt in an Accident

1. Seek immediate medical attention.

   Get examined right away, even if pain seems familiar. Medical records showing new symptoms are key evidence.

2. Be honest with your doctor.

   Inform them of your medical history so they can document the difference between old and new injuries.

3. Avoid giving detailed statements to insurance companies.

   Adjusters may twist your words to suggest you’re blaming your old condition.

4. Document your recovery.

   Keep notes about pain levels, physical limitations, and emotional struggles post-accident.

5. Call a California personal injury attorney.

   Legal representation can prevent insurers from denying your right to fair compensation.

Contact Shakhnis Law for Experienced Legal Guidance

If an accident aggravated a pre-existing injury, you’re entitled to compensation for your increased pain, treatment costs, and reduced quality of life.

At Shakhnis Law, we focus on complex injury cases where insurance companies try to deny responsibility. Our team works with medical experts, gathers compelling evidence, and fights to ensure your condition is recognized and your rights are protected under California law.

Contact Shakhnis Law today for a free consultation with a Los Angeles personal injury lawyer who understands how to navigate claims involving pre-existing conditions.