Causes of pain on both sides of the back, mainly including the following aspects: 1, consider lumbar disc herniation, lumbar muscle strain caused by, usually due to long-term engagement in heavy physical labor, carrying heavy objects or sudden turning, resulting in organism lumbar spine injury lumbar disc herniation, lumbar muscle strain, causing pain on both sides of the back. For this cause of pain, will be accompanied by radiating pain, and accompanied by local activity disorder, through the lumbar spine CT examination can be clear. Pain degree is light, can with massage hot compress physiotherapy, if the degree is serious, also need to perform surgical treatment. 2, consider is due to urinary system diseases, including urinary stones or urinary tract inflammation stimulation caused by the need to perform urinary ultrasound and urine routine examination can be clear. 3, female comrades need to consider gynecological diseases, including gynecological inflammation, as well as uterine fibroids, ovarian cysts and so on caused.