Can I Get Workers’ Comp if My Pre-Existing Condition Gets Worse?

 Posted on September 10, 2025 in Workers' Compensation

Many Illinois workers worry that a past injury or health problem will stop them from getting benefits if it gets worse on the job. The Illinois Workers’ Compensation Act, 820 ILCS 305/, makes clear that workers can still qualify for benefits if their job duties aggravate, accelerate, or combine with an existing condition. 

In other words, you may be covered even if you were not perfectly healthy before your workplace injury. A Champaign, IL workers’ compensation lawyer can help you understand your rights and guide you through the process.

What Is Aggravation of a Pre-Existing Condition in Workers’ Comp Claims?

A pre-existing condition is any health issue you had before your current injury. Aggravation happens when your job duties make that problem worse. This can occur in many ways. For example, lifting heavy boxes may cause a prior back injury to flare up. Repetitive tasks like bending or typing can make arthritis or carpal tunnel syndrome more painful. Exposure to dust, mold, or chemicals may worsen asthma or other breathing issues.

The fact that you had medical problems before does not prevent you from seeking benefits now. What matters is whether your job added to your condition in a way that required more treatment, time off, or permanent changes in your health and daily routine.

What Benefits Can You Receive from Workers’ Comp for an Aggravated Condition?

Workers’ compensation in Illinois may provide several types of benefits:

• Medical care, such as doctor visits, therapy, or surgery

• Wage replacement while you cannot work

• Disability payments if your injury has lasting effects

• Job training if you cannot return to your prior position

The type and amount of benefits depend on how serious the aggravation is and how much it affects your ability to work.

How Can You Prove That Work Made a Pre-Existing Condition Worse?

Insurance companies often argue that your pain or symptoms come from your old injury, not your job. To prove your case, you need to show clear evidence of the connection between your work and your worsening health. This usually means reporting the injury to your employer right away, telling your doctor exactly how your job duties affected you, following medical advice, and keeping records of your treatment.

A lawyer can also gather medical opinions that explain how your condition changed because of your job. This evidence can often be the difference between a denied claim and receiving the benefits you need.

It is common for claims involving pre-existing conditions to be challenged. Insurance companies may say your condition got worse naturally or that your job was not a major factor. If your claim is denied, you still have options. A workers’ compensation attorney can file an appeal, present medical evidence, and represent you before the Illinois Workers’ Compensation Commission.

Contact a Peoria, IL Workers’ Compensation Lawyer

A pre-existing condition does not erase your right to benefits if your job makes the condition worse. If you are dealing with an aggravated injury or medical condition, contact a Champaign, IL workers’ compensation attorney at Kanoski Bresney. We offer free consultations and are ready to protect your right to medical care and wage replacement. Call 888-826-8682 today to get started.