This document discusses hand safety and common hand injuries. It states that over 16 million people suffer hand injuries each year in the US, with over a quarter million being serious or disabling injuries. The most common types of injuries involve crushing, cuts, broken bones, and burns. Proper use of protective equipment and following safety guidelines can prevent many hand injuries, which are often caused by unguarded machinery, improper tool use, lack of gloves or guards, and hazardous chemicals.