Unless you are dealing with a cumulative trauma injury (injury caused by work duties injuring a person over time by a gradual worsening) the clock is ticking even before you get medical treatment. Any delay in reporting your injury, or seeking treatment for your injury, can raise suspicions and in some cases result in a loss of benefits. If your employer has knowledge of the injury that has the same effect of filing a claim. In order to preserve your right to receive compensation an Application for Adjudication should be filed at the Workers’ Compensation Appeals Board (WCAB) within one year of the date of injury or one year from the date the last compensation was paid or medical benefit was received and paid by the worker’s compensation insurance company or their adjustor.