If your spine is curved from side to side or in an “S” or “C” shape, you probably have scoliosis. According to the Scoliosis Research Society, more than 80 percent of scoliosis cases have no identifiable cause (SRS). The condition is often diagnosed during the first seven years of a child’s life. Common causes (when they can be pinpointed) are birth defects, neurological abnormalities, and genetic conditions.