Insurance adjusters are taught to play up the term “pre-existing condition” as it appears to be a loop-hole in the claim process. However, this is not the case. According to Texas state law, and similar regulations elsewhere, a defendant is responsible for the injury they have caused, and not the injuries you were already prone to before the accident happened.
This concept is the cornerstone in the majority of cases of personal injury. Sadly, this is also the principle that insurance companies and those responsible for the accident in the first place, prey on, assuming you are not privy to this information. They will try to underpay you by blaming everything on your prior condition. However, if you have a clear view of the laws regarding such cases, they are cornered.
The Eggshell Plaintiff Rule Isn’t New, and it Isn’t Controversial
The concept of treating fragile people as whole goes back more than 100 years. In Vosburg v. Putney (1891), the Wisconsin Supreme Court found that a boy who kicked a classmate in the shin, causing complications due to an earlier injury, was liable for the full extent of damage. The court’s reasoning contained one of the most quoted lines of the law of civil liability: The accused “finds his victim as he is”.
That’s the eggshell plaintiff rule, and the courts have applied it steadily since then. It doesn’t matter if your leg was already weak, your spine already damaged, or your knee surgically repaired several years earlier. If the neglect of someone causes new or additional damage to that vulnerability, they are responsible for the damage they cause. Fragility isn’t a discount code for the guilty party.
Aggravation Theory: How the Law Separates Old Damage From New Damage
The legal concept used in most injury cases to apply the eggshell rule is known as aggravation theory. In essence, if you had a degenerated disc but it was manageable and largely symptom-free, and someone’s negligence in a car accident tears that disc or causes it to herniate, the defendant’s not off the hook because the disc wasn’t in perfect condition to begin with. The tear is on them. The surgery it now necessitates is on them. The pain and impairment that resulted from the tear are on them, although the degeneration that was there all along is not.
This is where so many victims talk themselves out of bringing a claim. They assume that just because a doctor once told them or they can read it right on the X-ray that they have a touch of arthritis or a niggling old injury, the whole case is shot. It’s not. The question an adjuster or jury must answer is not “was this person squeaky clean healthy before the crash?” That question is “did the crash worsen things, and how bad are they now?” That’s a medical and a factual inquiry, not an automatic throw-them-out-the-door.
What Happens When the Insurer Sends You to an IME
During litigation, if aggravation theory applies to you, the real question becomes which symptoms were aggravated by the accident and by how much. That’s a question for your treating physician and potentially a specialist who can extrapolate from what the doctor has seen in their practice treating you and fairly estimate the impact of any pre-existing conditions on your likely future course of symptoms. It’s not a question that should be subject to a broad fishing expedition in the form of medical records requests or fishing-expedition IMEs, and not one the law allows the insurer to just blow off.
Defense lawyers like to say that “the door swings both ways” regarding pre-existing conditions, and they’re absolutely correct. Whatever your prior medical history, the at-fault party is still responsible for the harm caused. Treatment bills and pain during recovery aren’t made easier simply because you’ve had a sore back for years or that surgery 20 years ago left you predisposed to additional troubles. The at-fault party takes you as they find you, and if they knock an already unstable structure over, that’s on them. They don’t get a free pass because your wall was cracked to begin with.
The harder the adjuster pushes and the more forms they ask you to sign, the more convinced you should be that letting experienced Beaumont Personal Injury Lawyers manage the claim is the right move. They know the games, they know the strategies, and they know when to fight and when to settle. Give them a call and just see what they say, it doesn’t cost you anything to find out what your rights actually are.
Texas’s Proportionate Responsibility Rule Doesn’t Touch Medical History
Texas law governs how liability is shared when both parties in a car accident share some responsibility, and how damages are determined for plaintiffs. Under Texas Civil Practice and Remedies Code §33.001, also known as proportionate responsibility, there are rules for how a jury should determine the percentage of total responsibility, meaning legal liability for the accident, but those rules have nothing to do with juries considering your medical history in the context of fault. In most cases, juries never even hear about your prior-injury status because it’s simply not relevant to the question of fault.
The Real Fight is Over Causation Evidence, Not History
Documentation plays a critical role in determining legal cases regarding pre-existing conditions. The defense’s goal is not to deny that you were previously injured, but rather to show that your current issues are not the result of the recent accident. This is what we call a causation argument, and in most cases, it is decided based on the documentation provided.
The most compelling evidence in such cases is a causation letter from your treating physician. This letter is a written statement from your doctor indicating that the accident aggravated, accelerated, or worsened your pre-existing condition. In addition, detailed medical records showing your condition both before and after the accident are also very important. If your doctor can prove that imaging results, symptoms, or functional limitations got worse after the accident, then the timeline becomes solid evidence in your favor.
In fact, the rules for admitting an expert’s opinion as evidence in court, which are sometimes described in the context of Rule 702 or Daubert standards, require that the treating physician’s causation opinion be based on sound medical principles rather than guesswork. The better the medical records, the more likely that is to be the case.
The Issue of Treatment Gaps
The other thing that can devastate a solid aggravation claim is an unexplained gap in treatment. Did you wait several weeks before seeing a doctor about the accident? Did you fail to follow through on recommended treatment or referral to specialists? If any of these is the case, the insurance company will use it as proof that the new symptoms were not serious, and that they could have easily resulted from the pre-existing condition.
Consistency and immediacy can protect your case. Seeing a doctor right away and adhering to their instructions can provide the necessary support in case of a causation argument. Also, the insurance company representative’s work becomes more difficult in such cases, since lack of documentation cannot be used as proof against you.
The Crumbling Spine Scenario: When a Dormant Condition Becomes Disabling
There is a unique and significant exception to aggravation theory oftentimes referred to as the crumbling spine or dormant condition doctrine. It comes into play when a plaintiff has a condition (usually degenerative disc disease) that was asymptomatic pre-accident. In other words, it caused no pain, required no treatment, and elicited no complaints. Then the trauma occurred, and all at once the previously dormant condition became totally and permanently disabling.
In this scenario, the trauma is the deemed precipitating event. It is what transformed a silent condition into an actual injury. Yes, the age-related degeneration existed pre-accident, but the disabling injury did not, and the law draws that line. Insurers love to point at the pre-existing degeneration on the MRI and claim that because some part of the condition appeared on imaging before the accident, so did the entire disability. However, that argument conflates having a condition with being disabled by one.
Pain and Suffering Still Counts, Even With a Prior Diagnosis
Some people may think that they are limited to recovering medical expenses and perhaps lost income because their injury aggravated an old condition. They feel they are not entitled to anything for pain and suffering or loss of the pleasure of their lives. That’s not true. Non-economic losses are recoverable whenever your normal life is deprived by an injury, no matter what your pre-existing state of health.
If you could garden, play with your children, or work all day before the incident, but not after, that is a compensable loss. The law doesn’t determine if you were in perfect health before the incident. The question is how the incident affected your health, and that’s the basis for compensation.
What to Actually Do if You’re Worried About a Prior Injury
There are a few habits that tend to make a massive difference in the kind of outcomes people see.
For starters, be upfront with your doctor about everything, including old injuries and current diagnoses. Trying to sweep a prior condition under the rug backfires almost every time because it comes out in discovery that you got those records, and more than anything else it makes the insurance company question whether you’re telling the truth. Most prior conditions wouldn’t have hurt your case anyway, but your treatment goes from this point on should ideally look different from how it would have looked if the accident never happened.
Secondly, get yourself checked out and start treatment as soon as you can after the accident. Insurance companies love doubt, and delays are what gives them an opening to question you.
Don’t want to give them that chance? Great.
Third, and this sort of dovetails with the first point, don’t sign a broad medical release and definitely don’t give a recorded statement before you understand what exactly you’re signing up for. These forms are often drafted to get more information from you than the claim is entitled to so the adjusters don’t even have to be subtle about it. They know most people sign without reading through all the fine print.
Fourth, and this is where things get particularly time-sensitive: get a move on. In Texas, whether you have an extensive medical history or not, you’ve got two years from the date of the accident to file suit. That’s per Civil Practice and Remedies Code § 16.003.
A prior condition changes the scope of your claim. It doesn’t eliminate it, and of course insurance companies will try to muddy the water in hopes that you won’t realize that. It saves them cash, point blank. It is not the law.





