Simply put, a class action is used when multiple people have suffered the same or similar injuries, and those injuries are relatively minor. When your injuries are minor, it may not be worthwhile to bring a lawsuit on your own, and it may not be financially feasible for an attorney to take your case. However, if many people suffer similar minor injuries, a class action lawsuit is a great tool to seek redress and also deter the defendant from acting similarly in the future. When a large number of people are affected by a dangerous product, it may be difficult for them to file individual lawsuits.