Standing for a long time back pain may be caused by lumbar muscle strain, lumbar spine disease, lumbar fasciitis and other causes. 1. Lumbar muscle strain: sedentary or long-term bending, may lead to lumbar muscle strain, standing can not provide stable support for the lumbar spine for a long time, standing for a long time will be back pain. 2. Lumbar spine disease: If you suffer from lumbar spine disease, such as lumbar disc herniation, lumbar spine stenosis, etc., there may be lumbar spine local muscle degenerative scoliosis, after standing for a long time, the lumbar spine’s stability will be affected, and the symptom of lumbar pain will also occur. 3. Lumbar fasciitis: if you do not pay attention to local warmth may lead to local cold, thus the occurrence of aseptic inflammation, there will be standing for a long time back pain, but also the symptoms of local pain and discomfort. Standing for a long time after the symptoms of back pain, timely medical examination, under the guidance of the doctor standardized treatment.