Can I Get Workers Comp for a Pre-Existing Condition?
Having a pre-existing injury or medical condition doesn't automatically disqualify you from workers compensation benefits. Many people with prior health issues successfully receive workers comp when their job aggravates or worsens their condition.
How Pre-Existing Conditions Work with Workers Comp
Workers compensation is designed to cover work-related injuries and illnesses. A pre-existing condition becomes eligible for benefits when:
Your job aggravates or worsens the condition
If you had mild back pain before, but heavy lifting at work caused a herniated disc, workers comp may cover the worsening.
Work accelerates the condition's progression
A degenerative condition that would have taken years to become disabling but became disabling quickly due to your job duties may qualify.
Work triggers symptoms of a dormant condition
If you had an old injury that wasn't causing problems, but your work reactivated it, you may be covered.
The condition combines with work duties to cause new injury
Even if your pre-existing condition contributed to a new injury at work, you may still receive benefits.
Common Pre-Existing Conditions in Workers Comp Cases
Back and spine conditions
Degenerative disc disease, old back injuries, arthritis, or previous herniated discs are common pre-existing conditions. If your job duties worsen your back problems, you may qualify for benefits.
Joint problems
Arthritis, old fractures, or previous joint injuries can be aggravated by repetitive motions, heavy lifting, or physical job demands.
Carpal tunnel syndrome
If you had mild carpal tunnel that became severe due to repetitive hand motions at work, workers comp may cover treatment.
Heart conditions
Pre-existing heart disease can be aggravated by work stress, physical exertion, or occupational exposures.
Mental health conditions
Depression or anxiety that worsens due to workplace stress or trauma may qualify for benefits.
Respiratory conditions
Asthma or other breathing problems made worse by workplace fumes, dust, or poor air quality can be covered.
The Aggravation Standard
Most states use an "aggravation" standard. You don't need your job to be the sole cause of your condition—you just need to show that work aggravated, accelerated, or worsened it.
Example 1
You had a knee replacement five years ago. The knee was fine until your new job required climbing stairs 50 times per day. The repetitive stress causes pain and requires a second surgery. This may be covered by workers comp.
Example 2
You have degenerative disc disease that was mild and managed with occasional medication. After starting a job requiring heavy lifting, you develop severe pain and a herniated disc. Workers comp may cover your treatment and wage replacement.
Example 3
You had depression that was controlled with medication. A traumatic incident at work causes severe anxiety and PTSD. The worsening of your mental health condition may be work-related.
What You Need to Prove
To receive workers comp benefits for a pre-existing condition, you typically need:
Medical evidence of the pre-existing condition
Records showing you had the condition before your current employment.
Medical evidence of aggravation
Documentation from your doctor showing that your work duties made the condition worse.
A doctor's opinion linking work to the worsening
Your treating physician should state that your job aggravated, accelerated, or worsened your pre-existing condition.
Documentation of work duties
Evidence of what your job required you to do that affected your condition.
Common Insurance Company Tactics
Insurance companies often try to deny claims involving pre-existing conditions by arguing:
"This is entirely from your old injury"
They claim work had nothing to do with your current problems.
"Your condition was getting worse anyway"
They argue the natural progression of your condition, not work, caused your current state.
"You didn't disclose this on your job application"
Failing to mention a pre-existing condition on employment paperwork doesn't disqualify you from benefits, though it can complicate things.
"You need to prove work made it worse"
While you do need medical evidence, insurance companies sometimes demand unrealistic levels of proof.
How to Strengthen Your Case
Report your injury or aggravation immediately
Tell your employer as soon as you notice your condition worsening due to work.
See a doctor right away
Get medical documentation of your worsening symptoms and their connection to your work duties.
Be honest about your medical history
Hiding a pre-existing condition can hurt your credibility. Acknowledge it and focus on how work made it worse.
Get a clear opinion from your doctor
Ask your physician to document in writing that your work aggravated your pre-existing condition.
Document your job duties
Keep records of what your job requires you to do physically, especially activities that stress your pre-existing condition.
Keep a symptom journal
Note when your symptoms worsened and what work activities triggered problems.
What If You Didn't Know About the Pre-Existing Condition?
Sometimes you don't know you have a degenerative condition until a work injury brings it to light. For example:
- An MRI after a work accident reveals degenerative disc disease you didn't know you had
- A fall at work shows you have bone density issues
- Repetitive work motions reveal arthritis you weren't aware of
The fact that you didn't know about the condition beforehand doesn't disqualify your claim. What matters is that your work injury or work duties triggered the need for medical treatment.
The Eggshell Plaintiff Rule
Some states apply an "eggshell plaintiff" rule to workers comp. This means your employer takes you as they find you. If you're more susceptible to injury due to a pre-existing condition, the employer is still responsible when work causes harm.
If you have brittle bones and a minor workplace accident causes a serious fracture, workers comp should still cover your injury even though someone without your condition might not have been hurt.
When You Should Get a Lawyer
Consider hiring a workers comp attorney if:
- Your claim is denied because of a pre-existing condition
- The insurance company argues your condition is entirely pre-existing
- You need help gathering medical evidence
- Your doctor isn't clearly linking work to your worsening condition
- You're being pressured to accept inadequate benefits
- The insurance company disputes your disability rating
Lawyers experienced with pre-existing condition cases know how to present medical evidence, challenge insurance company doctors, and prove work aggravation.
What Benefits You May Receive
If your claim is approved, you're entitled to:
Medical treatment
For the work-related aggravation of your condition, including doctor visits, medications, physical therapy, and surgery if needed.
Temporary disability benefits
If you can't work while recovering.
Permanent disability benefits
If the work-related aggravation causes lasting impairment.
Vocational rehabilitation
If you can't return to your previous job.
You're not entitled to treatment for the underlying pre-existing condition itself, only for the work-related aggravation.
Let Us Help You Find the Right Attorney
Pre-existing condition cases can be complex, and insurance companies often use prior injuries as reasons to deny valid claims. If you're facing this situation, having an experienced workers compensation attorney makes a significant difference.
Dear Legal specializes in connecting injured workers with attorneys who understand the nuances of pre-existing condition claims. Answer a few questions about your situation, and we'll match you with lawyers in your area who have successfully handled cases like yours. The service is free, and there's no obligation to hire anyone.
Don't let insurance companies use your medical history against you. Get the legal help you need to prove your work-related aggravation.

