Possible causes of pain next to the spine include exertion, trauma, lumbar muscle strain, kidney stones, lumbar dorsal myofasciitis, and so on. 1. Exertion: Due to long time bending, improper posture, long time weight bearing and other reasons, causing the accumulation of lactic acid in the lumbar back, mild muscle injury, pain on both sides of the spine, difficulty in bending and other symptoms, generally can be relieved after rest. 2. Trauma: under the action of violence, the soft tissues on both sides of the spine are damaged, and pain can also occur. 3. Lumbar muscle strain: due to lumbar sprain, prolonged bending, spinal trauma and other triggers, resulting in chronic inflammatory reaction of the muscles, ligaments and other soft tissues of the lumbar back, which causes pain in the lumbar back, difficulty in bending and other symptoms. 4. Kidney stones: Due to the blockage of kidney and ureter by stones, local injury and infection are caused, resulting in low back pain, mainly colic. 5. Lumbar back myofasciitis: caused by cold, chronic strain and other triggers, resulting in aseptic inflammatory reaction of the fascia and muscles of the lumbar back, with common symptoms such as lumbar back pain, coldness and numbness of the skin. Causes of pain next to the spine are more reasons, may also be related to tumors, coronary heart disease, herniated disc and other diseases, if the symptoms continue to be unrelieved, it is recommended to consult a doctor in time, to clarify the cause of the disease, and to carry out targeted treatment.