Imagine the hammer slips and you smash your finger while working at a construction site. Depending on the severity of that injury, you might not be able to do your job for a while. You'll also need expensive medical treatments.
Fortunately, you're in luck. In most cases, injured workers can get the medical care they need, get money to pay for it, and even get money to pay for their time spent out of work. However, in order to get these benefits, you will need to file a claim for workers' compensation.