A lie down lumbar soreness is considered to be caused by the following conditions: First, it may be that the patient has fasciitis, especially those who have had old trauma, are very prone to and occur fasciitis, if it is caused by cold, more rest for a while will be relieved. Second, there may be lumbar muscle strain, that is, long-term sitting posture, so that the lumbar muscles in a state of tension, there will feel the lumbar pain, more rest will be improved. Once again, there may be a slippage of the lumbar vertebrae, which is a congenital development, resulting in the patient’s vertebrae not being very stable with each other, intensifying the stimulation of the nerves around the lumbar area, thus producing a sense of pain. Most cases can be rested to relieve symptoms, if the situation is more serious, you should promptly go to the hospital for further examination and treatment.