Lumbar pain is particularly strong, in the clinical aspects of the following reasons: 1, in the case of external injuries resulting in lumbar vertebrae fracture, or the elderly itself osteoporosis is particularly pronounced, in the case of a slight traction injury or sit on the buttocks squatting, can lead to compression fracture. 2, there are inadvertent sprains, for example, sitting on the bed to get up too quickly or turn over when the action is not done, which causes acute lumbar sprain or small joint disorder. Sprain or lumbar spine small joint disorder. 3, the sudden onset of urinary stones, can appear in the lumbar colic, pain is very serious, can not stand upright waist, and even nausea, vomiting. 4, usually like to sit for a long time, stand for a long time and bending over, suddenly found acute lumbar disc herniation can also cause lumbar spine pain is particularly severe. Therefore, there is no way to directly determine what is the cause of simple lumbar pain, and it needs to be clarified according to the corresponding symptoms, medical history and relevant auxiliary examinations.