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How to prove a repetitive stress injury for workers’ compensation

On Behalf of | Sep 10, 2025 | Workers' Compensation

If your job has been causing pain that’s getting worse over time, you might be dealing with a repetitive stress injury. In California, these injuries may qualify for workers’ compensation. What matters is showing how your symptoms relate to your job duties through clear documentation.

Understanding cumulative trauma injuries

The California Labor Code recognizes cumulative trauma injuries as work-related. These injuries do not result from a single accident. Instead, they build slowly through repeated physical or mental strain. Many workers in healthcare, education and tech develop injuries like:

  • Carpal tunnel syndrome from typing or scanning
  • Tendonitis from lifting or pushing equipment
  • Lower back pain from standing or bending for long hours

These examples show how common tasks can lead to long-term damage. If your symptoms match, tracking them early is important.

Tracking symptoms and meeting reporting requirements

To support your workers’ comp claim, you need to show how your job duties contributed to your injury. Start by keeping a written log that helps build a timeline. Include:

  • The date your symptoms started and how they progressed
  • Specific tasks that increase your pain
  • Any limitations in your ability to perform regular job duties

Once symptoms begin to affect your work or you suspect a connection, you must report the injury to your employer – often in writing – within 30 days of recognizing it as work-related. You should also:

  • Inform your employer in writing
  • Seek medical care as soon as possible
  • Describe your job duties and symptoms clearly during your medical visit

Your doctor may note how your job duties relate to your symptoms. Medical records should reflect your work tasks and symptom history. Even small differences between your report and your records may raise questions during the claims process.

When legal guidance may help

Your experience matters. Workers’ compensation exists to support injured employees, not to make the process harder. If you receive pushback with your claim, you may benefit from legal guidance. Cumulative trauma cases often require strong evidence and expert opinions. Consider speaking with an attorney who can help organize your records and guide you through the process.