Any injury suffered while at work should be reported. You should never feel like you must wait to see if the seriousness of the injury changes or feel like it shouldn’t be reported because the injury was your fault. The Arizona Workers' Compensation Act requires that workers "forthwith report" an injury that occurs at work to their employer. Report the injury to your boss or supervisor, and make sure the report is immediately completed. Don’t "wait until Monday" to file your report. Arizona's workers’ compensation law is a "no fault" system. This means that it doesn’t matter if you were to blame for the accident or if you placed yourself in a harmful situation while at work. Regardless of fault, you may still have a compensable workers' compensation claim and your injury should be reported. If you don’t immediately report your injury, it could increase the likelihood of your employer's insurance company denying liability for your injuries.