When the Job Wears Your Body Down Over Time
Not every work injury happens in one moment. Years of lifting, typing, cutting, sorting, or gripping can cause real, disabling harm – and California law treats these cumulative trauma injuries as compensable, just like a single accident. If repetitive work has damaged your body, our Fresno workers’ comp team can help.
Common Repetitive Stress & Cumulative Trauma Injuries
- Carpal tunnel syndrome and other wrist and hand injuries from packing, sorting, assembly, and keyboard work.
- Tendinitis and bursitis in the shoulder, elbow, and wrist.
- Back and neck injuries from repeated lifting, bending, and standing.
- Rotator cuff and joint damage from overhead or repetitive motion.
These are especially common in the Central Valley’s packing houses, warehouses, and food-processing plants, and in office and healthcare work.
The Deadline Rule That Trips Up Cumulative-Trauma Claims
With a sudden accident, the “date of injury” is obvious. With cumulative trauma it is not. California sets the date of injury as the point when you both became disabled (missed work or needed treatment) and knew, or reasonably should have known, that the condition was caused by your job (Labor Code § 5412). The one-year filing deadline (§ 5405) runs from that date. Because many workers do not connect their pain to their job until a doctor tells them, it is easy to file late – and easy for insurers to argue you filed too early or too late. Getting the date right is a big part of winning these cases.
Why Insurers Fight Cumulative-Trauma Claims
Because the harm builds up gradually rather than from one accident, insurers often argue the injury is not work-related, blame aging or a hobby, or dispute the date of injury to claim you are out of time. Solid medical evidence connecting the condition to the specific demands of your job is what overcomes these defenses.
How We Help
We document your job duties, build the medical evidence that ties your condition to your work, pin down the correct date of injury, and handle the QME process and deadlines. There is no cost unless we win benefits for you.
Frequently Asked Questions
Yes, when it is caused by your work. Carpal tunnel and other repetitive-strain conditions are compensable cumulative-trauma injuries.
Generally one year from the date of injury, which for cumulative trauma is when you first became disabled and knew (or should have known) the condition was work-related (Labor Code §§ 5412, 5405). Because that date can be hard to pin down, talk to a lawyer promptly.
Cumulative-trauma law can reach more than one employer over the period of exposure. A lawyer can identify which employers and insurers are responsible.
Yes. Whether your work caused or contributed to the injury is a medical question decided on the evidence, not by your employer’s say-so. Work only has to be a contributing cause.
It is illegal for an employer to retaliate against you for filing a legitimate workers’ compensation claim.
Contact Goldberg & Loren for a free, confidential consultation. Call (559) 629-8844 or request a consultation online. No fee unless we win.
Sources
California Labor Code §§ 5412, 5405 (leginfo.legislature.ca.gov); California Division of Workers’ Compensation. This article is general information, not legal advice; the application of these laws depends on the facts of your case. Last updated September 2026.
