The pain of it all, what do you know about back pain until you feel it yourself. You cannot truly know anything, yet according to statistics, the majority of people in the world suffer some degree of back pain. Some people go through pain. Yet, these people have never survived injuries. Yet others go through pain from injuries, and feel the worst. Ironically, however, injuries are not the only cause of back pain, rather few medical conditions, including multiple sclerosis can cause back pain. Learn more about the diseases that ache, the back.