Roller derby is not very dangerous. Skaters wear helmets, mouth guards, knee guards, elbow pads, and wrist protectors. If you fall over or are knocked over, your protection will stop you from being injured. There are very few injuries in roller derby bouts. The wrist is the most commonly injured part of the body when playing roller derby, so make sure you use a high-quality set of wrist protectors such as the Bont wrist protectors.