Back back cramp like: 1, may be because of lumbar spine slippage, lumbar spinal stenosis, or a clinical symptom caused by lumbar disc herniation. 2, may be because the lumbar muscles are subjected to wind-damp wind-cold, resulting in cold and dampness staying between the fascia and muscles, feeling a sense of stiffness and heaviness, the lumbar muscles can not stretch, feeling like cramps. 3, may be due to long-term strain or heavy physical labor, resulting in The muscle elasticity of the lumbar region decreases and inflammation forms, resulting in lumbar muscle strain, which produces pathological changes such as muscle spasm and insufficient blood supply, just like cramps. Therefore, if the symptoms like back cramps occur frequently and are not relieved for a long time, you must go to a regular hospital in time.