Reports | March 19, 2026 | Personal Injury
Insurance companies will dig through your medical history looking for reasons to pay you less on your personal injury claim. If you had a concussion in high school, suffered a prior head injury, or have any documented brain-related condition, they will use it against you.
They know that TBI claims with a pre-existing condition are easier to challenge. They count on injured people giving up when their past medical history appears to derail their claim.
But here’s what insurers won’t tell you: Florida law protects people with prior health issues. A previous concussion doesn’t disqualify you from recovering compensation for a new brain injury. A Gainesville brain injury lawyer can fight back against these tactics and pursue fair compensation for the harm you’ve suffered.
Does a Prior Head Injury Disqualify You From Compensation?

The Short Answer: No. Florida follows what’s called the “eggshell plaintiff” rule. This means the person who injured you is responsible for all the harm they caused, even if your pre-existing condition made your injuries worse than they would be for someone else.
You can recover compensation for how much your condition worsened because of the accident in a brain injury case, not just for what a perfectly healthy person would have experienced.
Key Takeaways About Pre-Existing Conditions and Brain Injury Claims
- Florida’s eggshell plaintiff rule protects people with prior injuries or health conditions from being denied compensation.
- You can recover damages for how much the accident made your condition worse, even if you had previous head trauma.
- Insurance companies commonly blame symptoms on pre-existing issues to reduce what they pay.
- Medical records showing your condition before and after the accident are critical to your case.
- An attorney can bring in medical professionals who can explain the difference between old symptoms and new damage.
What Is the Eggshell Plaintiff Rule?
The name comes from a simple idea: Imagine someone with a skull as fragile as an eggshell. If another person’s carelessness causes even a small bump that cracks that fragile skull, the careless person is still fully responsible for all the damage.
In legal terms, this means the at-fault party “takes you as they find you.” They can’t argue that you were already vulnerable or that a healthier person wouldn’t have been hurt as badly.
How this rule applies to brain injuries
Brain injuries are complicated. Some people recover from concussions quickly. Others develop lasting problems. If you already had a history of concussions or brain trauma before your accident, you might be more vulnerable to serious harm from a new injury.
Under Florida law, that vulnerability doesn’t reduce what you can recover. The person who caused your accident must compensate you for all the additional harm they caused, including an injury that was worse because of your medical history.
What this means for your case
If a car crash on I-75, a slip and fall at a Gainesville shopping center, or any other accident caused a new brain injury or made an existing condition worse, you have the right to seek compensation through brain injury claims in Florida. The key is proving how much the accident affected you compared to your condition before.
How Do Insurance Companies Use Pre-Existing Conditions Against You?
Insurance adjusters are trained to find ways to reduce or deny claims. When brain injuries are involved, pre-existing conditions become one of their favorite tools.
Common tactics insurers use
Insurance companies may argue that your current symptoms existed before the accident. They might claim your headaches, memory problems, or cognitive issues are just a continuation of old problems rather than new damage.
They will request your complete medical history going back years, sometimes decades. They’re looking for any prior mention of:
- Previous concussions or head injuries
- Migraines or chronic headaches
- Depression, anxiety, or other mental health conditions
- Learning disabilities or attention problems
- Prior car accidents or falls
Anything in your records that looks similar to your current symptoms becomes ammunition for their argument.
Why these tactics often fail
The eggshell plaintiff rule exists precisely because of these situations. Insurance companies can’t escape responsibility just because you weren’t in perfect health before the accident.
What matters is whether the accident made things worse. If you had occasional headaches before but now have daily migraines, the accident caused that change. If you managed your prior condition well but now struggle with basic tasks, the accident caused that decline.
What Evidence Helps Prove Your Claim?

Building a strong case for a traumatic brain injury means showing the difference between your condition before the accident and your condition after.
Medical records before and after
Your medical records tell the story. Records from before the accident show how you were doing, what symptoms you had (if any), and how well you functioned. Records from after show the change.
If you had a concussion ten years ago but fully recovered and had no ongoing symptoms, your pre-accident records will support that. If the new accident brought back problems or created new ones, your post-accident records will document that decline.
Testimony from people who know you
Family members, friends, and coworkers can describe how you functioned before the accident. They can explain what changed afterward. This testimony helps show the real-world impact that medical records alone might not capture.
Someone might describe how you used to handle complex tasks at work, but now struggle with simple ones. Or how you were active and engaged before but became withdrawn and confused after the accident.
Medical opinions
Doctors and other medical professionals can review your history and explain what the accident caused versus what already existed. A neurologist or neuropsychologist can conduct testing to measure your current abilities and compare them to baseline expectations.
These professionals can also explain how prior brain injuries can make someone more vulnerable to future damage. This supports the eggshell plaintiff argument while also showing that the accident caused real, measurable harm.
What Types of Accidents Cause Traumatic Brain Injuries?
Brain injuries happen in many ways. According to the Centers for Disease Control and Prevention (CDC), the most common causes include falls, motor vehicle crashes, and assaults.
Motor vehicle accidents
Car crashes are a leading cause of TBI, especially among younger adults. The forces involved in a collision can cause the brain to strike the inside of the skull, leading to bruising, bleeding, or other damage.
In the Gainesville area, traffic accidents, including commercial truck accidents and motorcycle collisions on busy roads like Archer Road, University Avenue, and I-75, regularly result in head injuries. Even crashes that seem minor can cause brain damage, particularly for someone with a history of prior head trauma.
Slip and fall accidents
Falls are the leading cause of TBI among older adults, but affect people of all ages. A fall on a wet floor at a store, an uneven sidewalk, or poorly maintained stairs can result in a serious head injury.
For someone with a prior concussion history, a fall that might cause only a bump for others could trigger lasting problems.
Other causes of TBI
Bicycle and pedestrian accidents, workplace injuries, and assaults also cause traumatic brain injuries. The Brain Injury Association of Florida estimates that about 97,000 Florida residents suffer from TBI each year, leading to thousands of emergency room visits and hospitalizations.
What Compensation Can You Recover for a Brain Injury?
If your accident aggravated a pre-existing condition or caused new brain damage, you may be able to recover brain injury compensation for several types of losses.
Medical expenses
This includes emergency treatment, hospital stays, imaging tests like CT scans and MRIs, neurologist visits, rehabilitation, therapy, and any other medical care related to your brain injury. Future medical needs also count if your condition requires ongoing treatment.
Many TBI patients need long-term care. Cognitive rehabilitation, speech therapy, and occupational therapy can continue for months or years. The costs add up quickly, and your compensation should account for what you’ll need going forward.
Lost income
Brain injuries often affect your ability to work. You may miss time for treatment and recovery. You may need to reduce your hours or change jobs. In severe cases, you may not be able to work at all. Compensation can cover both past lost wages and future earning capacity you’ve lost.
Pain and suffering
Living with a brain injury affects every part of your life. Headaches, confusion, mood changes, and difficulty thinking clearly take a heavy toll. Compensation for pain and suffering addresses these non-financial losses.
Loss of quality of life
Brain injuries can change who you are. Activities you once enjoyed may become impossible or frustrating. Relationships may suffer because of personality changes or communication difficulties. These losses are real and compensable under Florida law.
How Can an Attorney Help With Your Claim?
Brain injury cases involving pre-existing conditions require careful preparation. An experienced attorney brings resources and knowledge that can make the difference between a denied claim and fair compensation in brain injuries in Gainesville accident. They work to achieve this by:
Gathering the right evidence
Your Gainesville brain injury attorney can collect medical records, identify the right doctors to evaluate your condition, and find witnesses who can describe how the accident changed your life. This evidence-building starts early and continues throughout your case.
Countering insurance company tactics
Insurance companies have teams of adjusters and lawyers working to minimize your payout. Your attorney knows their strategies and how to respond. When insurers try to blame everything on your pre-existing condition, your legal team can present evidence showing what the accident actually caused.
Calculating your full losses
Brain injuries have long-term consequences that are easy to underestimate. Your lawyer can work with medical and financial professionals to project your future needs and make sure your claim accounts for everything you’ve lost and will lose.
What Is Florida’s Statute of Limitations for TBI Claims?
Florida law sets a deadline for filing personal injury lawsuits. Under Florida Statute 95.11, you generally have two years from the date of your injury to file a claim.
This deadline applies even when symptoms develop slowly or when you don’t realize right away how serious your injury is. Brain injuries can be tricky because some effects don’t show up immediately. Starting the legal process early protects your rights and gives your attorney time to gather the evidence needed to prove your case.
FAQs About Pre-Existing Conditions and TBI Claims in Florida
I had a concussion years ago but recovered completely. Will that hurt my current claim?
A fully recovered prior concussion generally shouldn’t hurt your claim. In fact, it may help by showing that you were functioning well before this accident. Your medical records from the period between injuries can demonstrate that you had no ongoing symptoms. The focus will be on what changed because of the new accident.
Can the insurance company force me to release my entire medical history?
Insurance companies often request broad access to your medical records. However, you have some control over what gets released. An attorney can help limit requests to records that are actually relevant to your injury. The goal is to provide what’s needed to prove your case without giving insurers unnecessary ammunition.
What if I wasn’t getting treatment for my pre-existing condition before the accident?
Not getting treatment can actually support your case. It shows you were managing without medical intervention. If you now need treatment after the accident, that change demonstrates the accident’s impact. The key is documenting the difference in your functioning and needs.
Does the eggshell plaintiff rule apply to psychological conditions too?
Yes. If you had a history of anxiety or depression that was under control before the accident, and the accident caused those conditions to worsen significantly, you can recover for that aggravation. Brain injuries often affect mood and mental health, and prior psychological history doesn’t prevent recovery.
How long do TBI cases typically take to resolve?
Timeframes vary depending on the complexity of your case, the severity of your injuries, and whether the insurance company disputes your claim. Cases involving pre-existing conditions may take longer because more evidence is needed to establish what the accident caused. Some cases settle within months, while others take a year or more.
Don’t Let a Past Injury Derail Your Head Injury Claim
Insurance companies want you to believe that your medical history disqualifies you from fair compensation. It doesn’t. Florida law protects people with pre-existing conditions, and the right legal team can make sure that protection works for you. Bagen Law Accident Injury Lawyers has spent over 40 years fighting for Florida’s injured. Call or contact us online for a free consultation to discuss your brain injury case.