Wouldn’t it sometimes be better to ignore a work injury if it’s not really serious and thereby avoid all the potential hassle?
That would be risky. Sometimes a seemingly small or very temporary injury turns out to be more serious. Back pains and other Repetitive Strain Injuries, such as tendonitis and carpal tunnel syndrome do not get better without rest and treatment. And if you continue to aggravate them, they could become so disabling that you are simply unable to continue working. The best advice is to seek medical attention first and call the WSIB. You are not legally required to put in a claim for an work-related injury but if you don’t and your injury later disables you, you could prejudice your chances for compensation that could be rightfully yours.