Insurers love to argue that your injuries came from a pre-existing condition, not the accident. Utah law has a direct answer to that tactic: the eggshell-plaintiff rule.
Under this principle, a negligent party is responsible for the full harm they cause, even if a more fragile or previously injured person suffers worse than an average person would have.
What the rule means in practice
If a crash aggravates a prior back injury, arthritis, or other condition, the at-fault party is liable for the worsening — not just the small slice that would have injured a perfectly healthy person. You are entitled to recover for the aggravation.
A pre-existing condition is not a reason to give up on a claim. The key is medical evidence distinguishing your prior baseline from the post-accident worsening.
Proving aggravation
Clear before-and-after medical records, consistent treatment, and physician testimony tie the worsening to the accident. This is exactly the kind of evidence an experienced attorney develops to defeat the pre-existing-condition defense.
Injured in Utah? Injury Claim Team connects you with experienced personal injury attorneys across the state. Call 973-566-5599 for a free, confidential case review — available 24/7, no fee unless you win.