Do Pre-Existing Conditions Affect my Texas Car Accident Claim?

Yes, a pre-existing condition can affect your Texas car accident claim, but it does not prevent you from recovering compensation. Texas law allows an injured person to recover for harm a crash caused, and that includes making an existing condition worse. What changes is the proof. Instead of simply showing that you were hurt, you and your medical providers may need to show how your health after the crash differs from your health before it.

Pre-existing conditions may complicate the process of filing a car accident claim in Texas, because insurance companies often point to an old injury or a chronic condition to argue that the crash did not cause your current symptoms. At Dale R. Rose, PLLC, our car accident attorney works with injured drivers and passengers across McKinney, Collin County, and North Texas, and we know how to separate the harm a collision caused from the health history an insurer wants to blame.

What Is a Pre-Existing Condition in a Car Accident Claim?

A pre-existing condition is any medical or health condition that was present before the car accident. It can be an earlier injury, a chronic illness, a degenerative condition that develops with age, or a mental health condition. Common examples in car accident claims include prior neck or back injuries, herniated or bulging discs, degenerative disc disease, arthritis, earlier surgeries, recurring headaches or migraines, and conditions such as anxiety, depression, or post-traumatic stress disorder (PTSD).

A pre-existing condition does not mean the crash could not have hurt you. A person who already has back problems may suffer more pain, new symptoms, or a longer recovery after a collision than a person with a healthy spine would. Someone whose condition was stable or well managed for years may suddenly need more frequent treatment, stronger medication, injections, or surgery. Those changes are what an aggravation claim is built around, which is why it is so important to seek medical attention after a crash and document any change in symptoms.

Texas Law Allows Recovery When a Crash Aggravates an Existing Condition

Texas follows the long-standing rule that a negligent driver takes the injured person as they find them. The at-fault driver is not excused simply because the person they hit was more vulnerable to injury than an average person would be. If the crash made an existing condition worse, the harm caused by that worsening is part of the damages the injured person may recover.

The Eggshell Plaintiff Rule

This principle is often called the eggshell plaintiff rule. It means that if a collision causes more serious harm to you because of a prior condition, the at-fault driver may still be responsible for the full extent of the harm the collision actually caused, even if a healthier person would have walked away with minor injuries. The rule does not make the at-fault driver pay for problems you already had. It makes them answer for what their conduct added.

How Texas Juries Are Instructed

When a Texas injury case goes to trial, judges commonly draw on the State Bar of Texas Pattern Jury Charges to instruct jurors on damages. In cases involving a prior condition, jurors are generally told not to award damages for a condition that existed before the occurrence, except to the extent that the condition was aggravated by injuries resulting from the occurrence. In plain terms, the jury compares your condition before and after the crash, and the difference is what may be compensated.

That framework shapes settlement talks as well. Insurers know how a jury is likely to be instructed, so the strength of your before-and-after evidence often drives how seriously an adjuster treats the claim.

How Insurance Companies Use Pre-Existing Conditions to Reduce Claims

Insurance companies will often try to use a pre-existing condition to deny, reduce, or delay payment of an injury claim. The most common argument is that your symptoms come entirely from the old condition and would have appeared with or without the crash. Adjusters may also argue that the crash caused only a brief flare-up that should have resolved within a few weeks, so any later treatment is unrelated.

Other tactics include asking you to sign a broad medical authorization that reaches years of unrelated records, requesting a recorded statement and asking detailed questions about your health history, and relying on a medical review by a doctor the insurer selects. None of these steps means your claim lacks value. They are ways of building an argument that the insurer should pay less. A personal injury lawyer may help you determine whether your condition was affected by the accident, how that affects your injury claim, and what information you should and should not hand over.

Evidence That Separates Old Symptoms From New Injuries

Aggravation claims are won or lost on comparison. The goal is to show a clear baseline before the crash and a measurable change after it. Evidence that often helps includes:

• Pre-crash medical records. Records showing your condition was stable, improving, or only occasionally treated establish the baseline.
• Prompt post-crash treatment. Seeing a doctor soon after the collision ties new or worsened symptoms to the crash.
• Comparison imaging. Earlier and later X-rays, MRIs, or CT scans may show a change such as a new herniation or worsening of an existing one.
• Treating physician opinions. A doctor who knows your history can explain how and why the crash aggravated your condition.
• Changes in treatment. New medications, more frequent visits, injections, physical therapy, or surgery after the crash show a real difference.
• Testimony about daily life. Family members, friends, and coworkers can describe activities you managed before the crash and struggle with now.

Gaps in treatment can weaken an aggravation claim, because insurers may argue that something else caused your symptoms during the gap. Our guide to the reasons to seek medical attention as soon as possible after a car accident explains why early care matters, especially when you already have a health condition.

Should You Tell the Insurance Company About Your Medical History?

Honesty matters. Hiding or downplaying a prior condition is one of the fastest ways to damage your credibility, and it rarely works. If your claim becomes a lawsuit, the defense can generally obtain medical records reasonably related to the injuries you claim, and prior treatment for the same body part is almost always relevant.

Being truthful does not mean volunteering everything to the other driver’s insurer. Do not provide a statement to the insurance company before speaking with a lawyer, and be cautious about signing an authorization that gives an adjuster unlimited access to your records. An attorney can provide the records that are actually relevant, frame your history accurately, and make sure your prior condition is presented as context for the aggravation rather than as an excuse to deny the claim.

Pre-Existing Conditions and Fault Are Separate Questions

A prior condition goes to damages, meaning how much harm the crash caused. It does not decide who caused the crash. Fault is analyzed under the modified comparative responsibility rule in Chapter 33 of the Texas Civil Practice and Remedies Code. If you are found partly responsible, your recovery is reduced by your percentage of responsibility, and if you are found more than 50 percent responsible, you cannot recover damages. Our guide on how comparative fault affects your Texas car accident case explains how those percentages are assigned.

Once fault is resolved, the damages question is what the crash added to your situation, including medical expenses, lost earning capacity, physical impairment, and pain and mental anguish tied to the aggravation. Our related posts on how compensation is determined in a car accident claim and mental anguish damages under Texas law cover those categories in more detail.

Texas Statute of Limitations for Car Accident Claims

Under Texas Civil Practice and Remedies Code Section 16.003, most personal injury lawsuits arising from a car accident must be filed within two years of the date of the crash. Missing that deadline can permanently bar your claim. Aggravation claims often take longer to evaluate, because doctors may need time to see whether a flare-up settles or becomes a lasting change, so it is wise to speak with a lawyer early rather than waiting for treatment to finish.

Talk With a Texas Car Accident Lawyer About Your Pre-Existing Condition

Dale R. Rose has been a licensed attorney for nearly 33 years and has tried more than 165 first-chair jury trials in 54 Texas counties. He has represented individuals, businesses, insurance companies, and the State of Texas, so he understands how insurers evaluate a claim that involves a prior injury and how to present medical history in a way that keeps the focus on what the crash changed.

If you were hurt in a crash and worry that an old injury or a chronic condition will be used against you, contact us at Rose Knows Law to discuss your case. Fill out our contact form to schedule a free consultation.

Frequently Asked Questions About Pre-Existing Conditions and Texas Car Accident Claims