The most common paintball injuries are bruising, welts, and eye infection. Bruises occur when the force of the paintball impacts the skin, and bumps appear when multiple paintballs hit a person in rapid succession. To reduce these types of injuries, it's essential to wear protective gear such as masks, gloves, knee pads, and long-sleeved shirts/pants. Additionally, some fields enforce low-impact paintball rules, which decrease the force of each shot.